What is a pobedite drill bit?

Drill bit for concrete drill design, selection and tips for use

If you need to drill a hole in the wall, then it is better to use a hammer drill, into the chuck of which you need to load a drill. However, if you don’t have a hammer drill, then you don’t need to buy this tool specifically for drilling concrete. A drill can also handle this.

Just to drill a hole in a concrete wall, you will need a concrete drill bit for a drill. This is a special attachment that is installed in the collet chuck of the tool.

They come in different types and designs, so before use, you need to understand their structure and application.

Design features of drill bits for a concrete drill

Initially, you need to find out what a concrete drill looks like on a drill in order to make a hole in the wall. To realize the idea, you will need a drill with an impact function. It is for the impact drill that you need to select a special drill for drilling concrete. In normal drilling mode, the tool will not be able to cope with the task without impact.

Everyone can imagine what an ordinary drill for wood and metal looks like. For drilling concrete, nozzles of a similar design are used, with only a slight difference - the presence of soldering made of carbide materials on the tip, head or working part. These brazes are designed to penetrate the wall while increasing the life of the cutting tool.

Drills for concrete on a drill are coated with pobedit surfacing, which combines a tungsten alloy with cobalt. This carbide material is applied only to the head of the nozzle, which is directly involved in contact with concrete and other similar materials. The alloy of tungsten and cobalt makes the cutting attachment strong, reliable and resistant to abrasion of the cutting edges.

In addition to Pobedit, manufacturers also produce concrete equipment for drills with soldering, or more precisely, coating with diamond dust. Such attachments are even more reliable when working with durable materials. They can even be used for drilling reinforced concrete, as they have high cutting properties.

The distinctive features of concrete drills lie not only in the design of the head, but also in the shank. The shank is the part that is recessed into the drill chuck and is clamped by the claws of the mechanism.

It is by the design of the head that you can distinguish a concrete drill device from other attachments for drilling metal and wood. Before choosing a drill bit for a drill, you need to understand their types and design parameters.

Concrete drill bit for drill and hammer drill differences

To process concrete, you can use both a hammer drill and an impact drill. These two instruments differ not only in design, but also in purpose. An impact drill is designed for drilling into metal and wood, but can also be used for working on concrete. You can only work with a drill on concrete for a short time, otherwise the mechanism of the tool will quickly wear out and become unusable.

The hammer drill is designed for processing concrete, but can also be used for working with metal and wood, but only in short-term modes. The attachments for these tools differ in the design of their shanks.

For a drill, the shank has a cylindrical design, and for a hammer drill it has a special shank with SDS type grooves. It is impossible to confuse the attachments, as well as to use them on instruments for which they are not intended.

However, one can argue with this, since thanks to modern adapters, a drill bit for concrete from a drill can be installed on a hammer drill.

About the design of shanks

The types of nozzles under consideration are classified into two main types according to the shape of the shank:

• Cylindrical - these are the most common, and are designed directly for impact drills with collet keys or keyless chucks
• Hexagonal shapes - this shank on concrete drills has an identical design with bits for screwing and unscrewing fasteners. Such nozzles with hexagonal shanks have a diameter of no more than 8-10 mm, and why this is so, we will consider further

When drilling concrete, and especially reinforced concrete, the drill may stall (get stuck). Due to the special cylindrical design of the shank, when it jams, the nozzle rotates, eliminating overheating of the motor and licking of the gear teeth.

When using drills with hexagonal shanks in a collet chuck, the possibility of them turning when jammed is eliminated. As a result of getting stuck, not only the tool, but also the person can suffer.

This is why manufacturers do not produce concrete drills with a hexagonal shank for drills larger than 8-10 mm.

!Drills with hexagonal shanks can also be used in the design of screwdrivers, where the chucks have a special hexagonal shape of the landing splines. There are also devices with tapered shanks that are designed for drilling machines, but they are not suitable for drilling into walls.

What to consider when buying a pobedit drill bit for a drill

For concrete, drills for power tools such as drills can be purchased in a set. This will allow you to use a nozzle of the required diameter if necessary. It is the diameter that must be taken into account before buying a drill.

When choosing a diameter, you need to take into account that drills for concrete indicate the size of the cylindrical part. When making a hole, the hole expands due to special plates on the head of the nozzle, which have a slight protrusion of up to 1 mm.

That is why, if it is necessary to recess a dowel measuring 6 mm in a hole, then for drilling you will need equipment measuring 5 mm. This must be taken into account at the stage of choosing a nozzle.

If a hole of large diameter is drilled and the dowel does not hold in it and is recessed, then there are special sealing devices for this.

In addition, the nozzles in question come in different lengths, which allows you to make holes of the appropriate depth. When purchasing, you must also consider the manufacturer. Often cheap drills are made by little-known or not at all well-known companies. Not always, but often such cheap concrete drills quickly fail. The cutting edge on them becomes dull, and therefore the equipment subsequently fails to cope with its task.

If you need to purchase high-quality equipment for a drill, then you should choose models from such well-known manufacturers as Bosch, Makita, Metabo and others. If you are drilling brick, ceramics or reinforced concrete, then for such work it is better to use drills with diamond coating on the head. Diamond types of equipment are considered the best in relation to drilling high-strength materials. In addition, depending on the quality of the equipment, they work for quite a long time.

!The only big disadvantage of diamond-coated concrete drills is the price. The price, compared to Pobedit ones, differs by more than 2 times, so you need to think about the rationality of such an acquisition in advance.

Recommendations and tips on how to drill concrete with a drill

Many people wonder what the best drill bits should be used for the job. Everything depends not only on the attachment and the power tool itself, but also on the correctness of the corresponding manipulations. Features of using the devices in question are to comply with the following recommendations:

1. Choosing the right nozzle. This determines not just the ability to drill a hole with a drill, but also the ability to secure a dowel in it. To do this, it is necessary to take into account the diameter as well as the length of the corresponding nozzle. You need to pay attention to the dimensions right away, but it is better to buy a set of drill bits for a drill in a package
2. Drilling reinforced concrete - to make a hole in a wall made of reinforced concrete, it is not necessary to buy a special device with diamond coating. An ordinary pobedit drill is also not able to cope with this task, since it will heat up and quickly become unusable. However, there is a way out of this situation - when the equipment reaches the metal reinforcement, it is necessary to install a metal drill in the drill chuck and drill through the metal. Once the metal is drilled out, you can continue to use pobedit-tipped tooling

1. If pobedite-tipped equipment has become dull, it can be restored using a grinder with a diamond-coated wheel
2. Avoid overheating of the equipment - if the concrete is very strong, the drilling process can take 10 minutes or more. During this time you need to pause, otherwise the metal of the equipment will quickly heat up and begin to melt. Each subsequent minute of work should be alternated with pauses of 10-15 seconds. It is best to use water cooling by feeding water into the hole being drilled.
3. Difficulties with drilling stones - if during the work the nozzle bumps into a stone, then there is a high probability that the drill will not be able to cope with it. To crush stone you will need a more powerful tool - a hammer drill. With its help you can quickly break through a wall and achieve your goal.
4. Frequent use of an impact drill for processing concrete surfaces is not recommended. First of all, the tool is not designed for such loads, so if you plan to frequently use the tool with attachments made of pobedite tipped, then it is better to use a hammer drill
5. When drilling holes in ceramics, only diamond drills should be used, and the work should be performed in a non-impact mode. This will prevent the destruction of the integrity of the tile, since, despite its high strength, it is a fragile material.

If you take all these recommendations into account, the process of processing concrete using drill equipment will be carried out effectively. Below is a table with recommendations for using concrete drill bits for drills.

Popular questions	Answers
How to drill a concrete wall in an apartment	To do this, it is better to use a hammer drill with a drill. If you don’t have a hammer drill, a drill with a high-quality Pobedit drill bit will do.
How to drill through concrete with rebar	Equipment for concrete and metal is used simultaneously. As soon as the device hits the reinforcement, you need to use metal equipment
How to choose drills	It is necessary to select according to such basic parameters as nozzle length, thickness or diameter, type of soldering, as well as the design of the tail part
Is it possible to drill concrete with a screwdriver?	If a drill can be fixed in a screwdriver chuck, this does not mean that this tool is suitable for processing concrete. Firstly, it does not have a shock function, and secondly, its electric motor is too weak
Is it possible to drill through concrete using metal equipment?	This is not possible, since the device will stand in place without making holes. In addition, the equipment will quickly become dull

The type of equipment under consideration is intended for use not only in the design of impact drills, but also in a hammer drill. To do this, a special collet chuck or adapter for drills is installed in the hammer drill.

However, you need to take into account the fact that the drill equipment is not designed for heavy loads, so it is possible that during prolonged use in a hammer drill, it can quickly fail.

And it is not recommended to use a screwdriver to drill holes in the wall, as this method quickly leads to failure of the tool.

Source: https://moiinstrumentu.ru/sverlo-na-drel-po-betonu-konstrukcija-vybor-i-sovety-po-primeneniju.html

The winner will win

Well and tunnel builders around the world are looking for a complete and yet economical replacement for the expensive diamond and pobedit cutters used on drilling equipment.

Fundamental science, in turn, has been struggling for decades to find new compounds and alloys not found in nature.

Read about how Russian oil workers helped scientists make a discovery that could lead to the industrial production of a new superhard material, tungsten pentaboride, in our material prepared jointly with Gazprom Neft.

Jewelry tool

Diamonds have been drillers’ best friends for a century and a half. In 1863, engineer Rodolfo Loscher first used the prototype of the modern diamond bit during the construction of a railway tunnel in the Swiss Alps.

The steel drills that were used then failed after just an hour of operation. According to legend, in despair watching the futile attempts to break through the mountain, Losche tapped his fingers on the window glass and noticed the traces of a diamond ring remaining on it.

Despite the crazy high cost (the cost of one carat of diamond in the mid-19th century was comparable to the cost of a horse-drawn carriage), Losche was able to persuade the investor to purchase 100 carats of diamonds. The precious stones were attached to the drill pipe manually: a separate socket was drilled at the end of the drill for each crystal and filled with special solder.

Soon the work began to boil. The diamonds crumbled, fell out of their nests, some of them probably never returned to their place, having rolled into the pockets of the workers, but still the precious drills paid off: the speed of penetration accelerated tens of times - instead of an hour, they were enough for a day.

Today, one diamond cutter costs between $20 and $200. Drill bits come in different designs: on average, they have 50 cutters, so the cost of the tool varies from half to several million rubles. The service life strongly depends on the composition of the rock that the drillers “gnaw”: in the conditions of Eastern Siberia, one bit travels 200-500 meters, and in Western Siberia - 10 kilometers or more.

It doesn't get any harder

Can anything replace a diamond? The question of whether a harder substance exists is of great interest not only to drillers, but also to the scientific community.

Over decades of searching, hundreds of publications were published, the authors of which claimed that they had finally found, or at least understood, where to look for a structure comparable to diamond, or even superior to it in hardness. All these allegations were subsequently invariably refuted.

So far, no known substance can compete with diamond in this property. But it has its drawbacks - in an oxygen atmosphere, diamond begins to burn at a temperature of 1000 degrees Celsius, and at higher temperatures it “dissolves” in iron-containing rocks.

A decade ago, Chinese scientists said that, according to their calculations, in the absence of impurities, the mineral lonsdaleite - a hexagonal polymorph of diamond first synthesized in the laboratory in 1966 - could be 58 percent harder than diamond. However, these theories have never been confirmed.

The search for a material that will replace the diamond cutter insert continues. Russian scientists have already obtained samples of new superhard materials, which in their characteristics are very close to such a substance as cubic boron nitride. This is one of the superhard compounds closest to diamond used in industry.

Crystal structures of superhard materials

Oganov et al. Journal of Applied Physics, 2019

Will he win all?

Until the end of the 19th century, the underground drilling and mining industries used only carbon-infused tool steel to create drill bits. Next came the idea of ​​using a tungsten-carbon alloy for cutting tools. It was first used in the 1920s at Krupp factories in Germany.

In the USSR in 1929, the “canonical” ratio of tungsten carbide and cobalt in the alloy was patented - 9 to 1. Soviet engineers called the alloy, quite in the spirit of the times, victorious. Today there are already dozens of winners: many include not only tungsten and cobalt, but also nickel, titanium, and tantalum.

A pobedite drill drills into concrete and can even pierce metal in it. Such drills cope with work on hard soils and rocky rocks.

For decades, cutter heads for drilling rigs all over the world have been made from pobedite (tungsten carbide) interspersed with synthetic diamonds. They are beyond competition in the market; other materials have not been able to supplant them.

Even harder materials, such as titanium diboride, either require high pressures during their synthesis, and therefore have a high cost, or have much lower crack resistance and are less practical to use.

Between tungsten and boron

In 2015, Russian oil workers and scientists from Skoltech decided to unite in order to jointly obtain a material capable of winning.

“At some point we asked ourselves,” recalls Artem Zakirov, an expert at the Gazprom Neft Scientific and Technical Center, “whether it was possible to use a different material for drilling cutters that would be more wear-resistant and would not require high pressures during synthesis.”

The answer to this question was sought between tungsten and boron. It is known that they can form among themselves many stable crystalline phases of different compositions: two phases of composition WB and three more compounds WB2, W2B, WB4.

In the course of new research, crystallographers have discovered three more stable structures that were previously unknown: tetratungsten triboride (W4B3), hexatungsten pentaboride (W6B5) and tungsten pentaboride (WB5). All three phases turned out to be refractory and superhard, and scientists called tungsten pentaboride WB5 the most interesting of them.

According to calculations, the hardness of pentaboride is at the level of 45 gigapascals. And its properties must be maintained even at very high temperatures - for example, the hardness of the new material when heated to 2000 degrees Celsius drops only to 27 gigapascals. At the same time, for example, the diamond would already be blazing with a blue flame.

Gazprom Neft was the first to test prototypes of cutters for drilling equipment made from newly designed materials. Tungsten pentaboride was tested on granite. The test confirmed that the samples are harder than Pobedit and its analogues. The unique material turned out to be 30 percent stronger and 2 times more resistant to high temperatures.

Now Gazprom Neft continues to explore ways to produce new materials and products based on them using industrial equipment. Especially for this purpose, together with the Russian Science Foundation, the company opened a laboratory for computer design of new materials at Skoltech.

Gazprom Neft

Evolution of success

“The easiest way to interact with business is when you are asked to solve a problem for which you have already half-thought out the solution,” says Artem Oganov, a Russian crystallographer and professor at Skoltech. “We have been studying many systems for a long time, predicting stable chemical compounds and calculating their properties. These were interesting substances, but they were not comparable to pobedit in terms of hardness. It seemed that the winner was truly invincible.”

Oganov's weapon is USPEX. Read this abbreviation however you want, but it stands for Universal Structure Predictor: Evolutionary (X)Crystallography. It is a machine algorithm for predicting crystal structures. It predicts what stable structure a substance with a given chemical composition will have under certain conditions.

The most stable structure of a substance has the least energy. In this case, energy characterizes the electromagnetic interaction of the nuclei and electrons of the atoms that make up the crystal. It is practically useless to search for structures with the lowest energy by simple search: even if the system consists of only a dozen atoms, there will be about 100 billion options for their arrangement relative to each other.

USPEX randomly generates a small number of structures and calculates their energy. And then evolution begins in the literal sense of the word: options with the highest energy, that is, the least stable structures, are discarded, and the algorithm generates derivative structures from the most stable ones. If their energy turns out to be lower than the “mother’s”, but the next “generation” is produced from them.

Reduce pressure

New superhard materials were sent to the Vereshchagin Institute of High Pressure Physics of the Russian Academy of Sciences to verify the results of Skoltech scientists.

“We had experience working with borides, accumulated over the previous 30 years, but we did not explore areas of higher boron concentrations, since such alloys are more brittle,” says Vadim Brazhkin, director of the Institute of Physics and Physics of the Russian Academy of Sciences.

In a chamber with a maximum pressure of 15 thousand atmospheres (approximately corresponding to 15 kilobars), prototypes from tungsten pentaboride several millimeters long were synthesized at the Institute of High-Property Physics. Larger incisor prototypes are not required since the working elements of the incisor crowns do not exceed 15 millimeters. In terms of mechanical indicators, samples obtained at high pressure are superior, but lose in terms of cost.

The IFVD explains that, according to their calculations, for implementation on an industrial scale it is necessary to learn how to synthesize pentaboride crowns at pressures less than 10 kilobars. The institute is now actively working on this. If successful, scientists will have to find a suitable site for production, convince service companies of the benefits of introducing the new material and protect patent rights.

“We wanted to build a technological chain from fundamental science to practical application. In our country, this institution of transfer and business requests to fundamental science is not developed. Using tungsten pentaboride as an example, we are trying to create it practically from scratch,” Gazprom Neft admits.

"Treasure map"

And while pentaboride was being baked and tested at the Institute of Higher Physics, theorists continued their search. And in a new publication, Oganov and colleagues from Skoltech and MIPT described a combination of the USPEX algorithm with two new methods for calculating Vickers hardness and impact toughness (the ability to absorb energy without destruction).

After ruling out noble gases, rare earth elements and radioactive nuclides, the scientists tested binary combinations of 74 elements from the periodic table. The result of their work was a “treasure map” of superhard materials, which identifies both already known and new substances of varying degrees of hardness and toughness.

The “map” presents both well-known materials: tungsten carbide, corundum, and promising ones. One of the new marks on this “treasure map” is tungsten pentaboride.

Crystallographers have also discovered superhard qualities in manganese hydride, a material that had never before been studied as a superhard phase. However, it turned out to be harder than stishovite, a super-hard silicon oxide created by meteorite impacts.

Nikolay Kozin

Source: https://nplus1.ru/material/2019/09/30/to-beat-pobedit

Pobedite drills: types, features, selection criteria

The purpose of any drilling, as is known, is to obtain an even and accurate sized hole in the product or structure being processed.

To solve such a problem, it is very important to choose the right tool; for drilling softer materials, a drill made of ordinary tool steel is suitable, and for processing harder and more durable materials, a carbide or pobedit drill is required.

The use of a tool whose cutting part is made of carbide material allows for effective processing of stone, brick or concrete.

Modern drills with carbide inserts can be intended not only for concrete and brick, but even for metal

How to choose the right drill

Despite the apparent simplicity of the process of drilling holes in various materials, solving such a problem is not so simple.

Many home craftsmen have encountered a situation where attempts to drill a hole in a wall or any other structure using an electric drill and a seemingly high-quality drill ended in failure.

The main reason for such problems lies not in the wrong choice of drill and lack of drilling skills (although these aspects are important), but in the use of the wrong drill. In addition, you must not only choose the right tool, but also have an idea of ​​how its cutting edges should be sharpened.

When preparing for drilling, the following rule should be taken into account: the drill must have a greater hardness than the hardness of the material in which the hole must be made.

If you try to make a hole in a concrete wall with a metal drill, you will most likely have to throw it away, since harder material will quickly render it unusable. This tool, made of high-strength steel, can be used to work with products made of wood, plastic, non-ferrous metals and steel alloys: it does an excellent job with them.

If you need to make a hole in concrete, brick or stone, that is, in materials of very high hardness, it is necessary to use a Pobedit drill. This drill differs from a regular drill in that plates of exceptionally high hardness are soldered onto its cutting part. Since the Pobedit alloy is predominantly used as the material for the manufacture of the latter, such tools began to be called Pobedit drills.

A characteristic feature of a Pobedit drill is a soldered tip made of the strongest alloy

What is it that will win

Pobedit, an alloy containing 90% tungsten and 10% cobalt, was developed in 1929 by Soviet specialists.

The main task that the developers set themselves was to create a material capable of imparting exceptional hardness to the working part of the cutting tool.

Pobedite brazing began to be made from the new alloy, which made it possible to significantly increase the efficiency of using drills, as well as to process high-strength materials with their help.

In the time since the appearance of Pobedit, the alloy has been constantly modernized. As a result of this modernization, quite a lot of varieties of tungsten-cobalt alloys have been developed, many of which are distinguished by higher strength, more affordable price and ease of production technology. Despite the fact that the ratio of components contained in such alloys may differ greatly from the composition of classic pobedit, they are still called pobedit.

Pobedite tips for drills and augers

It should be borne in mind that a drill with a Pobedit tip does not cut, but crumbles the material being processed. That is why a drill tipped from Pobedit is optimal for making holes in concrete, stone and brick, but is not suitable for processing wood, plastic and steel.

When trying to drill into a wooden product, such a tool will simply tear the wood fibers. As a result, the inner surface of the hole will be “shaggy”, and its diameter will be larger than required.

It is also not recommended to use a Pobedit drill for metal work: it will not be able to form a high-quality hole in such material.

Until recently, drills of different categories were used to form holes in materials of varying hardness. Today, drills with various pobedite tips are produced, which are specially designed for drilling materials that differ in structure and degree of hardness.

Drills with replaceable carbide inserts are used for industrial drilling

Design of drills with pobedit plates

Drills produced with a pobedit tip initially have the required cutting angles, so there is no need to sharpen them additionally. The cutting part of the drill with pobedite tips is formed from two “shoulders”, approximately equal in width.

The point at which such “shoulders” intersect will coincide with the center of the hole being formed, and the size of the widest one will correspond to its diameter. The axis of rotation of the Pobedit drill will coincide with the center of the hole if the width of the “shoulders” is the same. If there is a difference between the width of the “shoulders,” then the diameter of the hole being formed will differ from the transverse dimension of the tool by its value.

If there is a difference in width between the elements of the cutting part, this can lead not only to an increase in the load on the drill and the operator’s hands, but also to breakage of the drill.

Designs of pobedit drills

If drills with pobedit tips become dull, they can be sharpened in the same way as regular ones. When sharpening, you should keep in mind that the alpha angle of the cutting part of the drill should be smaller, the harder the material being processed. Pobedit is very afraid of overheating, and this should definitely be taken into account when sharpening.

In order not to encounter a situation where the pobedit carbide tip begins to crack or even separate from the main part of the tool, it is necessary not to let it overheat and cool it as often as possible, for which you can also use ordinary water.

If, nevertheless, the victorious elements of the drill overheat, they should be allowed to cool in natural conditions and in no case subjected to sudden cooling with liquid (this can lead to their cracking).

The modern market offers a wide variety of drills with carbide-tipped pobedit tips, which are designed for processing certain materials. Information about the purpose of such drills, if they are produced in serial conditions, can be found on the packaging.

Shapes of sharpening drills with pobedit tips (according to GOST 22735-77)

A price that is too low for a pobedite instrument should raise suspicions, as this usually indicates that you are looking at a low-quality product of unknown origin.

Assortment of pobedit drills

Today, every master can purchase any drills, including pobedit ones. On the modern market, such tools are presented in a wide variety of diameters. In this case, drills can be purchased either individually or in whole sets. Experts recommend purchasing small-diameter drills with a reserve, since such tools often break during use.

Prices for drills vary quite a lot. It all depends on the country in which the instrument was made and how well known the brand under which it is produced is known. The most expensive and high-quality drills are from well-known European companies. The cheapest include tools from unknown manufacturers, which not only do not have high strength characteristics, but also do not always correspond to the declared geometric parameters.

High-quality drills, thanks to a hardened rod, drill until the tip wears off

The fairly high price for drills with pobedit tips made by renowned manufacturers is completely justified, since these products are distinguished by such advantages as:

• accuracy of soldering of pobedit tips (connection points are almost impossible to detect visually);
• high quality and sharpening accuracy;
• stated warranty period during which the cutting part of the tool should not become dull.

After the warranty period for maintaining the sharpening parameters ends, the tool loses its uniqueness and can be used as a regular drill with pobedite tips.

It is worth telling separately about individual manufacturers of drills tipped from Pobedit.

DeWalt Extreme SDS-Plus Series Drills

Pobedit-tipped drills, manufactured by the famous DeWalt company, have working diameters of 4, 5, 6, 8, 10, 12, 14 and 16 mm. The shank of drills, the diameter of which does not exceed 12 mm, has a round shape, and for tools with larger diameters it is hexagonal, which allows you to more securely fix the drill in the chuck of the equipment used.

Impact drill for concrete Dewalt DT9536 SDS-Plus Extreme 2

The cutting edge of Pobedit drills from this manufacturer has a serrated configuration, which helps to effectively process even concrete, the structure of which contains reinforcing bars. The shape of the groove of such a tool, when viewed in cross section, resembles a jug, which ensures effective removal of dust generated during the drilling process.

To fix the pobedit carbide tip on the drill, special technology and solder containing copper are used, which makes this connection more resistant to overheating. Thanks to the high quality characteristics of such drills, the holes created with their help are obtained with virtually no chips at the edges.

Bosch pobedit-tipped cutting tools

Drills from the well-known German manufacturer - Bosh - are presented on the modern market in a wide range of working diameters (from 3 to 25 mm). This company produces drills specifically designed for processing various materials (the corresponding instructions can be found on the product packaging).

Drills Bosch-SDS-Plus-7-X5L. Rubberized box. The sticker talks about drilling in reinforced concrete, solid carbide head and extended service life

The company's assortment includes drills with pobedit tips intended for use in conjunction with impact drills (Blue Granite series). Products of this type, specially designed for drilling holes in masonry, have a number of advantages:

• high bending strength;
• higher durability when drilling concrete than a simple Pobedit drill;
• high quality and precision manufacturing of carbide inserts;
• a U-shaped groove, which significantly reduces clogging of the tool with crumbs of the processed material.

Bosh branded drills are laser marked and embossed with drill grade

The manufacturer also offers pobedit drills, used in conjunction with impact-type tools, but already intended for forming holes in masonry and building structures made of high-strength concrete (Silver Percussion series). Drills in this series are also characterized by high bending strength and the ability to effectively remove drill chips.

To create holes in artificial and natural stone masonry, as well as brick, Bosch offers a special series of drill bits with pobedit tips - Impact.

The most versatile of the Bosch drills with pobedit tips are the Karat series tools. Drills in this series are characterized by sharper cutting edges and centering sharpening. These tools can be used to process any material except artificial stone and concrete. Due to the peculiarities of their design, drills in this series make it possible to obtain smooth holes in various materials.

Set of eight impact drills BOSCH-SDS-Plus-3

Bosch offers tools from the Black Quartz series especially for drilling roof tiles, ceramic or tiles. It is able to withstand significant loads, while with its help it is possible to obtain high-quality holes with good decorative characteristics.

As mentioned above, drills equipped with Pobedit tips (if there is a constant need to use them) are more profitable to purchase not individually, but in sets. This way you can save a lot on the purchase of this rather expensive tool.

Source: http://met-all.org/oborudovanie/prochee/pobeditovoe-sverlo-po-metallu-betonu.html

Varieties of drills with a pobedit tip

When renovating an apartment (even the most minor one), and even more so when building your own home, you cannot do without such a familiar process as drilling holes in the walls, ceilings or subfloor.

It is easy to drill through plaster even with a regular metal drill. And if you have to drill concrete (of various types), brick or stone, then you cannot do without a tool such as a Pobedit drill.

Unlike conventional metal drills, a special carbide cutting insert is soldered at the end of such devices.

“Win” or not “win”

The Pobedit alloy, invented in the first quarter of the last century, consisted of 96% tungsten carbide and 4% cobalt. In the modern classification according to GOST, such a material corresponds to an alloy under the index VK4. The number in the marking of hard alloys indicates the percentage of cobalt.

Nowadays, for carbide drill tips, most manufacturers use VK8 alloy (92% tungsten carbide and 8% cobalt). Special additives are added to the alloy to improve cutting performance and extend the service life of products with carbide tips.

However, due to the ingrained habit of the people, the drill for working on concrete, brick, stone, glass or tile remained “Pobedit”.

Varieties

According to the scope of application and the design of the cutting part, all drills with carbide tips are divided into three main groups:

• for making holes in stone, concrete and brick;
• for drilling glass, tiles, porcelain and other ceramics;
• for foam and aerated concrete.

These consumables can have different shank shapes:

• cylindrical (for the chuck of a standard electric drill);
• hexagonal (regular or HEX with a groove for quick fixation);
• triangular (to prevent rotation of the shank in the chuck);
• SDS (various modifications: SDS-plus, SDS-max, SDS-top, SDS-quick), for installation in the chuck of most types of rotary hammers.

A wide variety of manufacturers producing products for making holes in solid materials of various diameters (starting from 3 mm) and with different tail designs will allow you to easily choose a drill for any model of drill, screwdriver or hammer drill.

Drills for working on stone, concrete, brick

The most popular type of carbide drills on the construction market is designed for drilling concrete, brick and stone (natural or artificial). The tip of these products is secured by high-temperature soldering. Almost all drills in this category can be used with drills and hammer drills in impact mode.

Attention! When choosing Pobedit concrete drills for your tool, pay attention to the diameter and type of shank that can be clamped in the chuck.

As a rule, all products in this category have a sharpening angle of about 130˚. Some manufacturers make a more complex sharpening geometry: a more obtuse angle and a centering point. The photo below shows what a tip sharpened using various technologies looks like:

When impacted, the tip crushes the material being processed (similar to a regular chisel). The steel body of the drill has helical grooves (from two to four) to remove dust and small pieces of crushed building material, and they also prevent the tool from pinching or jamming during rotation.

Important! For some products of this type, manufacturers prohibit the use of tools in impact mode! This is due to the cutting edge angle and alloy material. Cracking of the plaster (if it is already applied to the walls) does not occur with this mode of operation.

Sellers of products in this category consider them disposable consumables. However, many people sharpen these tools at home, since the process is in many ways similar to sharpening metal drills. Having an electric sharpener on the farm and a little practice, this will be quite easy to do. How to sharpen a victorious drill - see the video for details:

In order to drill holes of large diameters (from 65 to 120 mm) in walls made of solid building materials (for example, to install socket boxes), pobedit bits are used.

Drill bits for glass and ceramic tiles

To work with materials such as glass, tiles, porcelain and other types of ceramics, special drills with a Pobedit tip sharpened in the shape of a cone are used. The diameter of such instruments is from 3 to 12 mm. The shank is round (much less often hexagonal). Such tools are intended for use with screwdrivers, drills and hammer drills (only in non-impact mode). A drill of this type Ø=4 mm from the well-known manufacturer “Makita” costs 150÷170 rubles.

To improve performance, durability and improve the quality of the holes being made, some manufacturers make a reinforced design of the cutting part: they install two carbide inserts (fixed at an angle of 90˚).

The four cutting edges of this product allow you to create holes with a smooth edge and also increase drilling accuracy. Recommended for use with rotation speeds in the range of 400÷800 rpm.

A product of this design in the most popular size Ø=10 mm from the manufacturer “Praktika” costs 400–450 rubles.

On a note! Many people use such products to make small-diameter holes in concrete walls that have already been coated with a layer of plaster or other finishing material.

To make holes of large diameter (Ø=20÷94 mm), special circular drills with an adjustable hole diameter – “ballerinas” – are used. This drill has two carbide plates installed: one on the central guide rod, the second on the circular cutter. For some manufacturers, the design is supplemented with a protective cylindrical mesh (from fragments of the processed material). Depending on the design and manufacturer, the price for such products is in the range of 400–820 rubles.

Attention! To effectively drill tiles, glass or ceramics and extend the life of the product, manufacturers recommend carrying out such work using water cooling.

Drills for porous concrete

Blocks made from porous types of concrete (silicate, foam concrete, aerated concrete) are today a very popular material, both in commercial and individual construction. To drill small-diameter holes, you can use either a metal drill (however, it will not last very long) or a standard drill with a carbide tip, regardless of whether the walls have plaster or not.

To make large-diameter holes (from 30 to 120 mm), special products with soldered tips have been developed and are successfully used for drilling aerated concrete, foam concrete or silicate blocks. In appearance they are similar to feather drills for wood.

The design consists of a shank (up to 450 mm long, which allows you to drill through a standard foam block) with a carbide cutting bar and a guide tip soldered at the end. The hardness requirements for the alloys used for these products are much lower than for working on stone or hard concrete. To remove crumbs of the processed material, a small spiral (1÷1.5 turns) is attached to the rod.

For drilling, you can use any drill or hammer drill only in non-impact mode. Such a device from the manufacturer “Corte” (Poland) Ø=120 mm costs 460÷480 rubles.

On a note! These devices can be used to drill walls with interior and exterior decoration, but provided that the plaster was applied without the use of metal reinforcing mesh.

In custody

Among the huge variety of Pobedit drills currently sold, Pobedit drills are from time-tested manufacturers of cutting tools (such as Metabo, Hammer, Praktika, Bosh, Zubr, Makita, Stayer, Interskol ) will help you not only drill a hole in any solid building material, but will also allow you to use these products for a long time.

Source: https://zamesbetona.ru/oborudovanie/pobeditovoe-sverlo.html

Drill with a pobedit tip: structure, types and features of choice

Major or even minor cosmetic repairs are rarely done without drilling. At first glance, there is nothing simpler than making a hole of the required size in a wall or other place. However, here, as in any business, there are some nuances. In addition to some rules for handling the drill itself, it is important to choose the right cutting part. Drills with a pobedit tip are very popular.

Beginning builders sometimes find themselves in a difficult situation. The drills are new, of a good brand, the drill is in working order, but the resulting hole is not at all as planned, or does not work out at all. Often the reason for failure does not lie in poor work skills or a low-quality tool.

The first thing you should pay attention to is the materials from which the drill is made and the surface where the hole needs to be made. The basic rule is that the cutting tool must be harder than whatever it is going to cut. Proper sharpening of the tip is also important.

If you take a high-quality metal drill and try to make a hole, for example, in concrete, the product will quickly fail. It is not intended for such purposes. Drills with Pobedit tips are suitable for processing the hardest surfaces. Their cutting part is coated with an alloy called “win”, which has increased strength.

On the contrary, such products are often not suitable if processing is required , for example:

The winner does not cut the material, but rather crumbles it , so the holes are shaggy, ugly and larger than necessary. In the case of plastic, the necessary chip rejection is not ensured. As a result, the hole quickly becomes clogged, which leads to undesirable consequences:

• the load on the drill increases;
• operating time increases and efficiency decreases.

Because of these features, many masters, especially the “old school” ones, advise using pobedit only in suitable cases. However, the classic pobedit drill gradually changed. Now on the shelves there are products with special soldering (inserts), which are used to work with various materials, including “inconvenient” ones. For example, you can find a pobedit metal drill.

History will win

The alloy called “Pobedit” was created in the USSR in 1929. Intended primarily for the manufacture of cutting tools. The main goal of the developers was to select the optimal composition and obtain a material of exceptional strength. A solution has been found. The alloy, new at that time, included the following metals:

• tungsten (90%);
• cobalt (10%).

They began to make soldering for drills from pobedit and use it for other purposes. New technology has made it possible to significantly simplify and make more efficient the processing of materials that are particularly durable.

Since its creation, the composition of the alloy has changed many times: a different ratio of tungsten and cobalt was used, additives were added, etc. Now you can find solutions that:

• have different proportions of components;
• cheaper;
• easier to manufacture;
• more durable;
• suitable for working with less hard materials (steel, aluminum, etc.).

Despite the fact that the compositions of such modern alloys differ markedly from the classical ones and from each other, they are still called Pobedit.

Unlike some other drills, Pobedit drills do not require sharpening. They initially have the required tip structure (angles) for proper operation.

The cutting part is represented by two “shoulders” of approximately the same width. Where they intersect is the future center of the hole . If their widths are different:

• the diameter of the hole will determine the larger “shoulder”;
• as the craftsmen put it, the drill will “break” the hole: it will turn out larger than necessary;
• physical activity will increase;
• the intensity of the drill will increase;
• drills break more often.

If the tip becomes dull , it can be sharpened. In this case, you need to keep in mind:

1. The angle depends on the hardness of the material to be processed. The stronger the surface, the smaller it is.
2. Pobedit does not tolerate too much heat. At high values, the tip may crack or even separate from the drill. Therefore, you need to prevent overheating and cool it more often when sharpening. For example, plain water will do.
3. If overheating does occur, do not cool it suddenly. Otherwise, cracks will appear. It is best to allow it to cool naturally, that is, on its own.

If the diameter of the product is small, then it will most likely fail earlier. This rule applies even to experienced craftsmen. Therefore, it is better to stock up on a certain supply of drills to save time and nerves. Some masters argue that sometimes “courage” is also important. The work spirit can also be lost after going to the store. The extra ones will still come in handy later.

Main types

There are many types of drills made from Pobedite. They differ in manufacturer, quality, and price. Depending on the shape of the shank, there are:

• hexagonal: regular or recessed for quick installation;
• cylindrical - chambered for a standard drill;
• SDS - can be fixed in most rotary hammers;
• triangular - they are held especially securely and do not rotate.

The diameters are also different. Values ​​start from 3 mm. Pobedit drills are:

• for working with stone, brick, concrete;
• for gas and foam concrete;
• for ceramics, glass, tiles.

Drill bits for the hardest surfaces

Pobedit drills for stone, brick, and concrete are the most popular. Most of them can be used in shock mode. The sharpening angle is usually 130°. Some companies make the tip shape more complex:

• the angle is greater;
• the tip is centering.

If the hammer drill mode is selected, the tool crushes the surface like a chisel. The removed material is removed thanks to special grooves on the steel body of the drill. The usual number of these devices is from 2 to 4. They also have another purpose. The grooves prevent the drill from getting stuck while rotating.

https://www.youtube.com/watch?v=14SKYyyAY2k

Some manufacturers, on the contrary, prohibit the use of their products in shock mode. It depends on the characteristics of the alloy and the sharpening angle.

Typically, winning products in this category are considered disposable. At least that's what sellers do. However, craftsmen often sharpen them themselves and use them again. This requires an electric sharpener and a little practice.

Sometimes you need to get a large hole. If the diameter is from 65 to 120 mm, special crowns are used. Their design also includes a similar drill.

Drills for porous concrete

Today, building products made from porous concrete are very popular:

• foam concrete;
• aerated concrete;
• silicate

If a small hole is required, a regular metal drill bit may work. Its disadvantage is that it is short-lived. It is better to choose a standard victorious one. In this case, you don’t have to worry about the plaster.

If a hole of 30−120 mm is required , Pobedit drills with special brazing are used for the following materials:

• externally similar to feather drills for wood;
• shank - up to 450 mm, piercing through a standard block;
• the strength of the alloy is lower than for stone;
• for waste disposal there is a spiral of 1-1.5 turns;
• Any drill or hammer drill will do, the only condition is to use the non-impact mode.

Can be used for surfaces with external or internal finishing. The main thing is that there is plaster - without a reinforcing mesh of metal.

Drill bits for tiles, ceramics, glass

On sale you can find products designed for other types of material:

• glass;
• tiles;
• ceramics.

They are distinguished by the following features:

• the pobedit tip in such cases is made in the shape of a cone;
• the shank is round, sometimes in the form of a hexagon;
• used in shockless mode;
• diameter: 3−12 mm.

Sometimes the design of this type of drill is strengthened:

• pobedite plates - two;
• cutting edges - four;

This results in smoother edges and increased accuracy. It is usually recommended to use a rotation speed of about 400-800 rpm during operation. Products with a diameter of 10 mm are most often in demand.

There are other nuances when working:

1. If you need a hole of 20-94 mm, “ballerinas” are used - circular drills. With their help you can change the diameter of the hole. Consist of two pobedit plates. Sometimes a mesh is included to protect against splinters.
2. If small holes are required, then drills of this type are quite suitable for concrete. Moreover, there may be plaster on it.

Many manufacturers recommend using water cooling during operation. This will help:

• extend service life;
• increase efficiency.

The stores now have a large selection of drills made from Pobedit. You can always choose something suitable for a specific case, given working conditions and material. They are sold individually or in sets.

Product prices may vary greatly. It depends:

• from the manufacturer, brand recognition;
• from the country of manufacture;
• from the seller.

As a rule, popular European brands are more expensive . They are usually worth it, as they are distinguished by:

• good quality, including sharpening;
• mandatory guarantee;
• The tips are difficult to distinguish against the general background, since the soldering is very neat.

There are mid-level products. The cheapest products include products from unknown companies. Their common disadvantages include:

• strength - low;
• do not always correspond to the stated characteristics.

Drills from Bosch

Bosch products are well known to everyone. The company also produces drills with pobedit tips. Their diameter ranges from 3 to 25 mm.

Blue Granite series products are designed for stone processing. They are distinguished by:

• reliability;
• quality;
• They drill concrete better than ordinary pobedit ones;
• U-shaped groove for good waste removal;
• used with impact drills.

You can also highlight:

1. Silver Percussion - also for stone and concrete of special strength.
2. Impact - for processing natural and artificial stone.
3. Karat - designed for drilling any surface except concrete and artificial stone. The cutting part is sharpened in a special way and sharper, so the edges of holes in various materials are smooth.
4. Black Quartz - for roof tiles and tiles. Can withstand heavy loads.

DeWalt drills

Among the manufacturers, DeWalt stands out . The products of the Extreme SDS-Plus series are especially famous. Its features include:

• diameters - from 4 to 16 mm;
• shank - round or hexagonal;
• the cutting part is serrated, even takes concrete with reinforcement;
• the groove is in the shape of a jug, it removes debris well;
• the tip is attached to the drill using a special technology; special solder with copper is used;
• due to the design, such products can better withstand overheating;
• the holes are very smooth.

When choosing pobedit drills from any manufacturer, it is better to give preference to those that are designed for a specific material. If the tool is used infrequently, you can get by with “wide-spectrum” products. In any case, it is important to feel the characteristics of each type in work and practice.

Source: https://tokar.guru/instrumenty/sverla/sverlo-s-pobeditovym-nakonechnikom-konstrukciya-i-osobennosti-vybora.html

Drill for ceramic tiles: selection and rules of use. Pobedit drills. Tile drills:

When finishing walls, tiles are often used. After the cladding is completed, the question of placing hanging furniture and equipment on the wall becomes relevant.

To hang a shelf or anything else, you need to drill a hole in the tile - and this is where the difficulties begin. An ordinary concrete drill cannot be used for tiles. The finish may be damaged. Here you should use a special drill for ceramic tiles.

Let's look at what these tools are, what their features are, and how to choose a drill for a specific task.

For tiles under dowel

If you need to make a hole in the surface of a ceramic tile, a simple concrete drill will only result in chips and cracks. The problem can only be solved with the help of a special tool. There are several types of tile drills for different tasks. With their help, holes are made for installation using dowels. The drill diameters are small. But at home, dowels larger than 12 millimeters are rarely used.

Spear drills

They are used when you need to make a hole with a diameter of up to 12 millimeters. Among the main advantages of this tool are high efficiency and wear resistance, if you follow the basic rules of working with it during the drilling process.

Also, the main advantages include the affordable price. This type of tool is perfect for drilling a hole for a dowel. Using a spear-shaped element, you can make a series of holes in porcelain stoneware. But don’t get too carried away - you can make up to five holes.

When working with porcelain stoneware, the tool will quickly become dull.

Will win

Sometimes ordinary pobedit drills are used instead of these tools. Provided they are sharpened well, they allow you to get good results. But it is worth considering that they will wear out in a shorter time. Pobedit is not intended for working with surfaces such as tiles and ceramics. Although such instruments are much cheaper than spear-shaped ones.

When working with such material, it is better to use these drills for ceramic tiles, even despite their rapid wear. Tools for working with porcelain tiles are much more expensive - they are bought when you need to drill a lot. If the goal is to make just a couple of holes, the most optimal option will win.

Carbide drill with single-sided triangular sharpening

This tool is distinguished by one-sided sharpening - its angle is acute. Due to its special shape, the drill will easily enter not only tiles and ceramics, but also other hard materials. This tool can be used to work with porcelain stoneware. Carbide tile drills are used to make dowel holes. The maximum diameter is 12 millimeters.

Diamond Coated Products

These tools work the same as regular ones. But due to the spraying of diamond chips, the drill makes holes in hard materials much easier. A significant drawback is the price of the product. However, when taking into account the efficiency of the drill, you can turn a blind eye to the cost. But for two or three holes, buying a diamond drill for ceramic tiles is expensive.

Types of tools for making large diameter holes

Large diameter holes may be needed during the installation of pipelines and sockets. Special drills designed for working with hard materials are used here. We'll look at them below.

"Ballerina"

This drill for ceramic tiles received this name because of its operating principle. Experts call it circular. At the moment of drilling, the tool actually rotates, just like a ballerina. The product is most often used for large holes with a diameter of 30 to 90 millimeters in tiles and ceramic tiles. The tool includes several components. It is based on a centering element.

In parallel, a backup one is attached to it. During the drilling process, they move along a special guide bar. Also included is a cutting bar. The latter is secured with a bolt. Both the main drill and the backup drill are equipped with hard alloy brazing. This makes it easy to make a hole in tiles and even porcelain stoneware. The tool is indispensable when it is necessary to obtain a hole of non-standard diameter.

How to work with a “ballerina”?

Let's see how to drill ceramic tiles with this tool. An electric drill without impact function is required for operation. The drilling process is carried out strictly at low speeds. Also, during the work, do not press too hard, pressing the tool against the surface of the tile.

It is most convenient to make holes in ceramics when they have not yet been laid. If you drill from both sides, you can get the best result.

But even with the correct use of drills of this type, the walls of the hole made will never be perfectly smooth. If the tile is located in an open area, the hole will definitely require modification. Well, if it is under the bathtub or under the sink, then uneven edges do not have such a serious significance.

Diamond coated crown

To make holes with large diameters, specialists often use crowns coated with diamond chips. This product makes it possible to obtain a large hole, while the edges will be perfectly smooth. Crowns are made in the range from 10 to 70 millimeters. But you can also find larger options on sale - these bits are not suitable for drills. You need to work with them on a machine.

These crowns are produced in various diameters. The best results can be obtained by drilling on stationary machines with water cooling. Drilling ceramic tiles using this tool and an electric drill requires the use of a core bit with a center drill. Without it, it will be difficult to do quality work.

The optimal speed at which it is possible to achieve a good result is from 200 to 500 per minute.

The tool works great with hard materials, including porcelain stoneware. But when drilling the latter, the crown will quickly wear out.

Tungsten carbide coated crown

This type of product is suitable for working not only with tiles, but even with stone. Often the tool is sold as a set of four drills of different diameters. These drills are mounted on one base. You can work with ceramics, porcelain stoneware, marble and other hard materials.

Drilling tool

To make small holes, experts recommend using a hand drill. It allows maximum control over the number of revolutions and clamping force. Electric drills that have a continuously adjustable speed function are also suitable. A screwdriver may be used. The main thing when drilling tiles is the absence of vibrations and jerks. It is definitely recommended to disable the shock function. The top layer of any tile is very fragile. It is deformed even from the slightest blow.

The use of hammer drills or impact drills is possible, but only after the tiles are drilled all the way.

How to work correctly?

Let's look at safe ways to drill ceramic tiles. There are two methods - manual and using a drilling machine.

When choosing the manual method, it is necessary to reduce the clamping force to a minimum. This will help maintain the integrity of the tile. Work should only be carried out at low speeds. The smaller they are, the less backlash and vibration. Do not overheat the area where the hole will be. This can cause the ceramic tiles to crack. Experts recommend cooling drill bits for glass and ceramic tiles, and also pouring water on the surface of the material.

The main difficulty in making holes lies in the topmost layer, which is covered with glaze. Due to the strong smoothness, the drill moves away from the intended place. Several methods can be used to accurately position the drill at the desired point.

So, you should scratch out the conical recess with a hardened self-tapping screw or the sharp edge of a file. You can achieve the same result by sticking masking tape or adhesive tape on the surface of the tile. This will prevent the Victory bit from slipping during operation.

You can mark the required point with a stationery proofreader.

Drilling technology

The first step is to determine the number of holes and the places where they will be made. Next, future holes are marked with a marker. The areas are sealed with tape so that the mark is clearly visible through it. Masking tape will prevent the drill from slipping. It won't be possible to do without it.

The drill must turn off the impact mode and set the minimum speed. After the top layer has been passed, the speed is increased. But you need to periodically cool the drill and drill. If the drill becomes dull, you should sharpen it. If damaged, replace it.

When the tiles have been completely drilled, you can change the drill according to the type of wall material. Now you can switch to impact mode and carefully, at medium speed, drill the hole to the desired depth. And finally, you can peel off the tape, insert the dowels into the holes - the fastening is completed.

It is better for beginners to first try their strengths and capabilities on broken tiles. In fact, the process of drilling tiles is much more complicated than working with any other materials. You can take a small drill for ceramic tiles (6 mm) and try to work with it.

Price

How much can you buy a drill like this for? The price, depending on the model and manufacturer, ranges from 70 to 250 rubles per unit. If you purchase a kit, the cost will be 10-15 percent lower. By the way, drills suitable for tiles can be used to make holes in glass products. This ensures high hole cleanliness.

Finally

As you can see, it is impossible to make a hole in the tile with ordinary drills. A concrete tool will only damage the tiles. Here you need to use special devices with which you can obtain ideal holes of different diameters.

With proper use and good cooling, drills can be used for quite a long time. At the same time, they will not lose their properties. Some types of products are even used to work with porcelain stoneware, which is a very hard material.

With the help of modern drills and carbide alloys, ideal holes with smooth edges are obtained, which is very important for finishing work.

Source: https://www.syl.ru/article/339913/sverlo-dlya-keramicheskoy-plitki-vyibor-i-pravila-polzovaniya-pobeditovyie-sverla-plitochnyie-sverla

How to choose a drill bit for concrete for a rotary hammer or drill: diamond, with a pobedite tip

› Low-rise construction › Tools

14.06.2019

To create holes in particularly strong materials, you must use concrete drills specially designed for this purpose. When using other types, the cutting zone becomes unusable and becomes dull. Before you start working, you need to familiarize yourself with the types of concrete drill bits for drills, which ones are better, how to choose tools and what is the best way to drill.

How to drill concrete

To choose what to drill into a concrete wall, you need to follow the rules:

1. Choose a tool with the ability to change the speed of the process, thanks to this the drill will work carefully without damaging the surface.
2. Pay attention to whether the tool has impact drilling and depth adjustment; this gives good results when working with problem areas and helps soften them.
3. Choose a drill that you can hold with both hands.
4. Pay attention to the power of the tool.

Drilling with a hammer drill

The hammer drill is the most powerful tool, suitable for large volumes of work and for drilling concrete walls.

There are 2 ways this tool works: rotation and impact. For rotation, a special type of drill bit for a concrete hammer drill is used - a drill, it comes with a Pobedit drill bit. You can tell what a concrete drill looks like by its special shank, to which a special chuck is installed.

Such drills mean:

• SDS plus - has a thin shank and recesses to hold the hammer drill in your hand, the profile is symmetrical, it is easy to install this type of drill;
• SDS max - has a thick and long shank; correct installation is possible only in one position.

The pobedit tip is resistant to heavy loads. When the hole is located on the edge of the structure, drilling concrete using the impact method is not recommended, because

A concrete structure may chip, and when working with ceramic tiles, the material will simply crack.

In this case, it is better to use a diamond concrete drill for a hammer drill; it has greater hardness than a Pobedit drill; you must take breaks during work to cool it; drilling at high speeds is prohibited.

Drilling

For small-scale work, especially in an apartment with thin walls, you can make a hole with a drill designed for drills for working with concrete. It can be either a win or a diamond product. A drill with a cylindrical shank is used for impact drills. When working, it is recommended to choose medium speed. Which drill bits for concrete are best to choose depends on the type of drill.

Types and parameters of drills - distinctive features

When choosing a drill for concrete, builders ask how to distinguish its characteristics and make the right choice. Each product differs in size and is produced in a given diameter and length. One of the small drills for concrete work is 4-5 mm, it is no longer possible to drill a thinner hole of this diameter, its depth will be about 5 cm.

For example, with a diameter of 12 mm or more, the drill will be 1000 mm long, this will be enough to make a through hole in all walls except the bunker. The largest diameter is about 30 mm, it is not easy to work with, there is a heavy load on the hammer drill, and it takes a lot of time to cool down.

If it is necessary to make a larger hole, a core drill is used, which has a centering drill and a crown around it. Thanks to this, the process goes quite quickly, and the load on the hammer is small.

The core drill is coated with diamond coating or lining made of pobedit. A drill with a pobedit tip is set to the drilling and impact mode, with a diamond tip - to the drilling mode.

Drills from Pobedit

Pobedit as an alloy was developed in 1929, the main composition is cobalt and tungsten, where 10% cobalt and 90% tungsten. Effectively cope with brick, cinder block, concrete. The drill can be used to crush and cut concrete; it can withstand impact loads quite well, and no deformation of its cutting edges is observed. Steel products are subject to deformation and do not work as efficiently.

Application area:

1. Drilling holes when laying electrical communications.
2. A pobedite drill bit can be used to make holes for anchors and other fastenings.
3. Channels when installing connecting elements in walls during the construction of building frames.
4. Dismantling concrete structures, drilling large-diameter holes for laying ventilation and sewage systems.
5. Installation work on fastening elements during the assembly and installation of furniture and fittings.
6. Working with fragile materials such as ceramic tiles and glass.
7. Drilling hard rocks from stone, hard alloys.

One of the advantages of the work is that there is no need to apply excessive force to the Pobedit drill.

Diameter selection

The diameter of the drill is selected taking into account the fact that when working with dense material, such as concrete, beating occurs during operation. As a result, the hole comes out slightly larger than planned. For this reason, the diameter should be taken slightly smaller than the planned hole itself. The length of the element indicates the greatest depth that the hole should be.

Most popular brands

The best concrete drill bits for drills from foreign manufacturers:

• Makita;
• Bosch;
• Metabo;
• stayer;
• FIT.

The products are considered to be of high quality, and therefore have a high cost, especially Bosch products, which have a four-spiral design.

Domestic manufacturers:

• Interskol;
• Bison;
• Anchor;
• Hurricane.

Drills have an average price category and, accordingly, a short service life. Products from a Chinese manufacturer can also be of good quality, but only if they belong to the appropriate price category. When constructing buildings in Moscow and other Russian cities, workers often use the listed product brands.

Drilling recommendations

If stones hit during operation, it is difficult for this element to move further; the stone must be broken using a chipper, then work continues. When drilling a hole in a load-bearing wall or ceiling, it is recommended to use a hammer drill; with its help, the work can be completed as quickly and efficiently as possible.

It is also better to drill a reinforced concrete wall with a hammer drill. For a hole in ceramics on the wall, you cannot use the impact method or use a drill on concrete, otherwise the tile will collapse.

How to drill concrete with reinforcement correctly

In some cases, during the drilling process, the hammer drill may collide with metal reinforcement, in which case it is necessary to replace it with a special drill designed for this purpose. You can't work when you're old, even if you sharpen it.

How to choose a drill bit for concrete for a rotary hammer or drill: diamond, with a pobedite tip Link to the main publication

Source: https://1beton.info/maloetazhnoe/instrument/sverlo-po-betonu