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It comes down to the tip – which in our new stone spiral drill bit set is made of a particularly robust carbide with 89 HRC hardness. Because professionals know that simple drills cannot cut into granite, concrete or brick. Rather, special stone drills are required with tips that pound the material with small strokes. Incidentally, we have prepared such a drill at our excellent prices.
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Posted in TROTEC, Up To Date | Tagged with Stone drill bit set, Stone spiral-drills, Tools, drill bit set |
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