CLR95 - 400 Grit Diamond Bur (Made In USA) - 1/8" Shank Rounded Cylinder Shaped - 18mm Approximate Head Length, 7mm Approximate Head Diameter, 1/8" Shank 400 Grit 100% Natural Diamond (Not Synthetic), U.S. Made - High Quality - Durable Great for grinding or carving all types of stone, glass, tile, wood, and more Great for making marble or other stone sculptures Will give you a smooth, matte, pre-polished finish