20pcs/set 120 Grinding Cutting Engraving Drill Bit Set For Dremel Rotating Tool

Description: Name: drill set Material Diamond Shank diameter 3mm Head diameter 6mm Total length 45mm Granularity 120 Granularity Features: These are 120 grit and 3.0 mm tool holders. Spherical grinding head, diamond grinding tool for diamond and jade carving,need to be used with electric grinder. Pacakge list: 20Pcs/set  drill set Note: light shooting and different displays may cause the color of the item in the picture a little different from the real thing.  Manual measuring,please allow 1-3mm error,thank you.