But special — they are
Punch — in fact the same drill with one important difference. In addition to the usual drilling, it has a drilling mode with a blow — this is when the drill not only spins in the process, but also makes progressive movements. And such an unit uses not ordinary drills, but special — they are called boura. Using a perforator, you can make a hole in almost any wall. Then a dowel is used — a plastic cylinder, which is placed in the hole with some effort. So that everything would hold, the diameter of the dowel and the holes should approximately match.
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