PHYHOO Jewelry Tool Rubber Rotary Tools Polishing Burr Dremel 26pcs Diamond-in-Rubber Emery Polishing Bit Set - Fits Dremel - Metal, Glass, Stone, Tile 26 Bits in a variety of sizes, 2.35mm shanks fits Dremel & other rotary tools Unique emery rubber compound embedded industrial diamond particles, extra-fine, fine, medium grit Highly-effective at removing rust, corrosion, paint from metal and other hard material Less harsh than mounted stone or diamond-on-steel bits; leaves smooth, polished surface