... Diamond, friable, its girt is sharp, and Thermal conductivity4 Suitable for grinding Hard alloy, Optical glass, vitrify, gem, agate, honing cylinder ... friable materials.5. Please mark in detail(such as max speed, port, special bond and so on), when the function or ... to the order, shape, size, abrasive material, grain, grade, , and speed grinding wheel for woodworking tools