Winning Drills: Features and Applications

It's not a secret that it is unlikely to make a hole in reinforced concrete with an ordinary drill. When you try to do this, the product will slide over the concrete surface and become unusable.

In general, concrete is the most complex and unyielding material. To work with him, use special winning drills, which are welded carbide plates.

The material for the manufacture of products isalloy of cobalt and tungsten carbide. And the name "victorious drills" of hardware was obtained from the word "victory". Since the drills created in the last century were designed to defeat concrete or other material.

Winch drills require special conditionsoperation. In their arrangement, the carbide plate is attached to the body by soldering. During operation, the active part of the instrument is subject to strong heating, while the strength of soldering decreases, which leads to the probability of tearing off the plate.

To prevent this from happening, the winning drillsmust be periodically cooled. The products of the latest generations are produced by laser welding. This makes it possible to withstand heating up to 1200 ° C, and also drilling can be carried out at a higher speed.

New developments can significantly changestructure of carbide plate. Today, simultaneously with tungsten carbide, nitrides and carbides of titanium, boron, and silicon are used. However, such combinations are difficult to drill concrete. Significantly accelerate this process allows the application of reciprocal (shock) motion simultaneously with the rotational motion. Thanks to this, concrete at the point of impact cracked, and drilling gives the best result.

To handle concrete, the winning drills must be used in special drills equipped with a percussion device. This will achieve an optimal drilling and punching mode.

To speed up the process and extend the service lifethe product should be taken every 15 seconds of work to remove the drill from the hole, insert into the hole the same product that has served its own, and carry out a pair of blows with a hammer.

It is possible to achieve success by asymmetric sharpeningdrill. This allows you to reproach the process of drilling concrete. It turns out that even a strong winning bit is not suitable for processing steel, and sometimes even soft material. Therefore, when faced with fittings, products can be spoiled. Modern technological hardware has a resistance to overheating and can overcome any obstacles during drilling. In the other case, it is necessary to replace the winning product with a stepped drill for working with metal.

To increase the speed of work use platesof hard alloys, equipped with cutting teeth. Similar products can be treated with any sharpening material (concrete, granite, steel, glass and even wood). Sometimes in the process of working use a set of hardware, which includes a drill bit for tile, metal, wood, etc.