New one box set of 30 pieces diamond coated burrs with pointed heads in box set.
They will fit your hand drill, drill press & Compatible for Dremel and Foredom tool with a 1/8" collet. Shank diameter : 3.17mm (1/8 inch)
diamond drill bits in a coarse grit, for drilling glass, shells, tile and stone.
Overall length is 40mm (1-5/8 inch) | They will fit your hand drill, drill press & Compatible for Dremel and Foredom tool with a 1/8" collet. Premium type diamond coated in GRIT 80 (coarse). Suitable for glass, marble, rock or jewelry.
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