To drill from the opening in the wall, lined with tiles, for example in the bathroom, I first clean lazurevy layer rotational motion of an ordinary glass cutter, carbide wheel pressed in the center hole. Then the tiles can be easily and drill. G. NECHAEV, g Perm
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If in the manufacture of furniture or other structures needed to drill a large number of holes of the same strictly defined depth — make for drill shown in figure limiter. This may be...
