Drilling holes in concrete: the necessary equipment and technology

Each master at least once faced the need for drilling concrete. Thus there are some questions, for example, what equipment and technologies to use at the same time. If you do not approach correctly this task, then the result may be a failure.

Choosing a tool for drilling concrete

If you want to drill holes in concrete, it is recommended that you first determine the tool. In this case, you can use one of two options, the first is a percussive drill, the second is a perforator. The latter solution is preferable, since the main task of this tool is to punch holes in a stone or concrete. With this equipment, it is possible to obtain holes with a sufficiently impressive diameter, while even the best quality drill will not be able to make holes with a diameter exceeding 12 cm. However, if it is necessary to work with foam concrete, in this case it is necessary to choose a drill, since the perforator Just crash against the wall.

If you have to drill holes in concrete, then you can not use an unstable drill to work, it's not only useless, but it can also cause a tool breakdown. If you have to do just a few holes, then for want of a drill, a drill will do, too, whereas if you need to form a lot of holes, the rent or purchase of the corresponding equipment will be necessary. In this case, it is not just about saving time and effort, this requirement is due to the fact that devices of this type are not designed for high loads, and with mismanagement the equipment can become unusable. If you still need to use a drill, then you need to use a winning drill, designed to work on concrete. The tip should have a coating in the form of carbide spraying.

Diamond drills and other devices

Drilling holes in concrete can be carried out with the help of ring drills, which have diamond spraying on top. They are designed to work in tandem with drilling rigs that are capable of making holes with a diameter of 25 centimeters. It should be taken into account that such devices are quite expensive, so it is useless to buy them for domestic use.

If during the repair there is a need to do a place for the socket or switch, then it is necessary to use crowns intended for working with concrete. Along the circumference of the working face and they have tapes made of hard metal alloys. Their diameter can vary from 35 to 120 millimeters. However, the most commonly used crowns, the size of which is 68 millimeters. This is due to the fact that this diameter is required for the installation of sockets.

If you want to drill holes in concrete using the crown, you must turn off the perforator impact mode. As a rule, such devices are able to form holes, the depth of which is not more than 15 cm. If there is a need to go deeper into the wall to a more impressive thickness, an extension piece can be used. Such crowns can be used in tandem with a drill. Unlike the previous ones, such additions have a sputtering of a carbide-tungsten alloy along the circumference. The advantage here is that if there is a need to make a hole in the concrete, which is tiled, then the nozzle need not be changed, it will be able to drill well not only the decorative layer, but also the concrete itself. If you want to drill holes in concrete, equipment of the type described can be used with crowns, but the drill must not have a power above 1000 W.

Using drills

If there is a puncher you want to use with the drill, then the diameter of the drill can vary from 4 to 80 millimeters. Quite often novice masters are wondering how to choose the right drill diameter.

Together with the puncher is recommended to purchase a set of drills for metal. However, quality kits have a very high cost, so the diameter should be the same as the dowel, which is supposed to be inserted into it. When buying such drills it is recommended to find out what tail they have - SDS + or SDS-max.

Features of drilling concrete

If you decide to drill holes in concrete with a perforator, it is first necessary to check whether there are any contaminants in the cartridge. If they were found, you must remove them with rags, otherwise you may experience some difficulties when working.

When inserting the drill in the chuck, it must be ensured that it is installed at a right angle, while the shank is mounted as far as it will go. The biggest problem that you can face when drilling, is the collision of a drill with metal fittings. As a rule, this happens if necessary to pierce the wall to a great depth. In this case, the armature must be traversed by the punch, only after that it is possible to continue the work. If the holes are to be made with an impact drill, then a metal drill will help with the job .

Recommendations of the master

If drilling holes in the concrete crown is made, then every 15 minutes, you need to take a break for the same period. This is due to the fact that a non-professional tool is not designed for a long load. During this time, not only the device will cool down, but also the consumable material. Before continuing the work, it is necessary to moisten the drill with water, this will prolong its service life.

Conclusion

When laser drilling holes in concrete, it is possible to detach the sections of the wall from the back side. In this case, it is necessary to reduce the speed, then the process will be somewhat slower. Despite the fact that the manipulation takes away a lot of time, the wall from the outside will remain untouched.