8Pcs 200-230 Grits Diamond Grinding Bit 2Mm Oval Head 2.35Mm Shank 8.5Mm Length

8Pcs 200-230 Grits Diamond Grinding Bit 2Mm Oval Head 2.35Mm Shank 8.5Mm Length Stone Sanding Drill Bits Rotary Tool for Ceramic Glass Nails Grinding Polishing ⭐️⭐️⭐️⭐️⭐️. The round handle design of the rotary tool diamond grinding drill bit makes it suitable for most electronic grinders, engraving machines, hanging grinders and hand drills, which is very suitable for gemstone carving, molding repair, casting cleaning, rust removal and polishing, and DIY enthusiasts.