CACAGOO 86pcs Rotary Tool Accessories Kit Diamond Burr Bits Drill Polishing Kit for Sanding Polishing Cutting Carving Wood Stone Jewelry Glass Ceramic with Wooden Case

Maintian Tips: 1. Rotate speed as high as possible usually required speed over 10-20m/s 2. Please operating with water to prolong the diamond burr heads service life 3. After install in carving/rotary/engraving tool before use please test if they are firmly assembeled 4. As drilling please keep stable in case shape working broken rotary bits Specification Quantity: 86pcs 12 Types Diamond Burr Bits: A/B/C2/C3/C7/D/E/F/G/H/K/Q Diamond Burr Bits Shank: 2.35mm （3/32inch） Sanding Ring Grit: 1000/1500/2000/3000/5000/7000 Sanding Ring Shank: 3.0mm Minimum Speed: >10-20 m/s Packing List: 80 * Diamond Burr Bits 6 * Sanding Ring 1 * Wood Storage Case