Drill for concrete for drills

Concrete is often used as a material for erecting load-bearing walls and overlapping walls in construction. During the repair and finishing work , it becomes necessary to drill it. It is best to handle the puncher, but it is also possible in the absence of it. If the number of holes is small, as well as their dimensions, then it is quite possible to handle the impact drill by selecting a suitable drill bit for concrete.

How to choose

The drill for concrete is a rod of cylindrical shape, which can be divided into three zones: the shank, the cutting part, the calibrating part. For a drill, it is necessary to select a drill bit for concrete with a cylindrical shank. Do not purchase drills with a shank SDS - they are designed for perforators. Calibrating zone defines the size of the future hole. Two spiral grooves in the calibrating part serve to discharge the waste material. More precise, stable and productive - a drill bit for concrete with a grinding profile. The technology of its production is quite labor-intensive, hence the higher cost of finished products.

The cutting part of the drill for concrete differs from the cutting part of any other drill. It is equipped with a carbide plate, which crushes concrete, brick, granite, natural stone. Due to this difference, the drills are called "winning". The modern composition of the alloy has changed since the invention, as well as the production technology. Initially, the fastening was done by soldering, in recent years, world manufacturers have been using high-performance laser welding technology . Its advantages - reliability of fastening and resistance to thermal effects. The correct angle of the cutting part is 130 degrees.

How to drill concrete with a shock drill

Specialists recommend using a perforator to drill concrete and other particularly strong materials. But this tool is quite expensive. In order to drill a few holes in the wall, an impact drill is quite suitable. Prepare a metal pin, a hammer and a small container with water in advance. Drilling holes in concrete is usually accompanied by heating the drill, especially if it hits the reinforcement. Periodically it must be wetted in water.

1. Mark the place of the future hole with a marker or pencil.

2. Drill a small groove with a conventional drill.

3. Change the conventional drill bit to the concrete bit.

4. Set the drill in the "shock" mode.

5. Start drilling.

6. After the drill bit enters the wall, turn off the drill, allowing it to cool.

7. Insert the prepared metal pin perpendicular to the wall and apply Several blows with a hammer. At the same time, the pin must be turned slightly.

8. Then work again with the drill.

In principle, using an impact drill, it is not necessary to additionally use a pin (punch). But the process of drilling with it is faster.

Safety recommendations

1. Wear suitable respiratory protective equipment. This will protect you from the inhalation of dust.
2. Eyes from dust and debris will protect special plastic glasses.