... , mirror grinding100#-280#165-12550-40Fine grinding, molding grinding, tool sharpening, honingW7-W3.57-53.5-2.5The superfinishing mirror grinding ... wheel for grinding groove, cutting, etc.MetalMGood toughness, formability, strength, self-sharpening is poor.Use to manufactureall kinds ofdiamondabrasive tools. grinding wheels