Abstract: The grain shape of the heavy grinding wheel, the composition of the grinding layer, the wear of the grinding wheel, the grinding force of the grinding wheel and the appearance quality of the endmill are studied. The results show that the composition of the grinding layer has a effect on the self-sharpening of the grinding wheel. Under the same grinding condition, the crystal shape of abrasive not only affects the grinding force and wear resistance of the grinding wheel itself, but also determines the appearance and surface quality of the solid carbide cutting tools.