... durable 4.stronger flexibility than A 1.abrasive high speed grinding wheelshould be written according to the order, shape, size, ... abrasive material, grain, grade, and speed.2.Suitable for the work pieces made of materials Chilled steel,3.High ... -carbon steel, which of strong intensity, high hardness grinding,4.It also used to process Thread, Gear, Components grinding wheel for woodworking tools