... . good edges holdout, 3.stronger flexibility than WA, 1.vitrified grinding wheel cover various specifications of vitrified abrasives with the diameter ... , friable, its girt is sharp, and Thermal conductivity4 Suitable for grinding Hard alloy, Optical glass, vitrify, gem, agate, honing cylinder ... the order, shape, size, abrasive material, grain, grade, , and speed grinding wheel for woodworking tools