A great tool for making holes in concrete, ceramics, brick is obtained from a carbide cutting plate lathe cutter, driven on the grinding wheel to the shape of a disk with a tapered cutting edge. Mandrel for mounting in the Chuck is machined from steel rod Ø 12 mm. Disc is mounted on the axial groove with the screw M5. V. KNYAZEV, Leningrad
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Beginning homebrew is often the inexperience or negligence cause a wound to themselves, especially on the fingers. Not enough to have in the workshop first aid kit, should still be able...
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Having estimated the location on the wall overhead shelves, cabinets, or perhaps carpet, not in a hurry so just drilling the holes in the wall. It may well be that the concrete wiring....
