... grinding, ultra-fine grinding, thread grinding, honing46#-80#400-315200-160Roughing, semi-fine grinding, fine grindingW14-W1014-1010-7Fine grinding, fine grinding, ultra-fine grinding, mirror grinding100#-280#165-12550-40Fine grinding, molding grinding ... heat resistance, the abrasive grains easily fall off.Suit for centerless grinding wheel and guide wheel, grooving and cutting sheet wheel ...