Thermo (Set of 20) Tapered Head Diamond Mounted Point Grinding Bits Polishing Tools/ Abrasives for Die Grinder,Hanging Mill, Die Grinder,Electric Drill. Can be used for carving, grinding and etching on a variety
Diamond tool - Wikipedia
Ultra-Precision Diamond Tool - MICRO-LAM, Inc.
Grade: A Grade / Natural Industrial Diamond Tools, Packaging Type: Packet at Rs 1800/piece in Pune