4 pcs 30mm Stone Rotary Grinding Bits with 1/4 Inch Shank, Aluminum Oxide Mounted Grinding Point for Grinding, Polishing，Deburring Ferrous Metals（4pcs 6x30 cone head）

DGZ Store 4pcs 30mm Stone Rotary Grinding Bits, 80 Grit Aluminium Oxide, 1/4 Inch Shank, Compatible with Drill, Ideal for Metal, Auto, Aircraft, Jade & More

FOTYBEI 10Pcs Tungsten Carbide Rotary Burr Set Compatible with Dremel Rotary Tool Accessories, Die Grinder Bits with 1/8" Shank for DIY Woodworking, Carving, Metal Polishing, Engraving, Drilling

Tungsten Carbide Burr Set 1/4" Shank 10PC Double Cut Rotary Cutting Burrs Die Grinder Bits for Steel and Wood Working, Grinding, Carving, and Engraving