Features: Designed to grind carbide and hard steel, stone, metal and other processing and polishing, mainly used in alloys knives, saw blades, serrated grinding process Resin bond for uncomplicated grinding operation with good material removal rates, while maintaining a low thermal influence on the work piece Grit:150 Outside Diameter:125mm Center Hole Diameter:16mm/20mm/25mm/32mm Height:8mm Edge width:10mm Packing Included 1x Diamond Grinding Wheel