Features:Resin bond diamond sand grinding wheel, a tapered side cladding type.Black sand layer are sharper than red sand grinding, and the surface hardness is lower than red sand. High quality resin bond for uncomplicated grinding operation with good material removal rates, while maintaining a low thermal influence on the workpiece. Grinding carbide lathe and milling cutters and inserts, sharpen carbide tooling absolutely, work great for grinding carbide tipped lathe bits.Mainly used for grinding carbide and hard steel, stone, metal ,high hardness alloy knives and carbide alloy saw blade, serrated grinding process and ect.