ITEM NAME:50*4*10mm diamond grinding wheel disc for metalworking carbide wood metal Features: 100% brand new and high quality. Used for polishing metal,stainless steel,wood,stone,and so on. Applicable for grinding and derusting on the surface of metal plane and cambered, and some other areas. Wear resistance, uniform granularity, the sand is not easy to fall off, durable. Specifications: Item:Gringding Wheel Diameter:50mm Thickness:4mm Centre aperture:10mm Package Included: 1pc Centre Depressed Grit Metal Grinding Wheel.Wear resistance, uniform granularity, the sand is not easy to fall off, durable. Item:Gringding Wheel.