20pcs Diamond Burr Set Rotary Grinding Burrs Drill Bits Set with 1/8 Inch 3mm Shank Stone Carving Accessories Universal Fitment for Rotary Tools

Features:
Diamond rotary grinding set with rougher surface, which are quicker than the larger grit burrs when sanding, polishing and engraving.
Suitable for stone, glass, metal, hardwood, tile, ceramics, marble, granite and other hard materials.
10 different grinding drill bits(total 20pcs) for abrasive, engraving, cutting, polishing, carving and etching.
Grinding drill bits with universal 3mm (1/8 inch) shank, fits most rotary tools.
20pcs grinding drill bits are separately packed in small pockets of a bag, easy to place and carry.