... function 4. low.grinding heat 5.tool parts 1.abrasive tools, tool partsshould be written according to the ... and speed.2.Suitable for the work pieces made of materials Chilled steel, 3.High-speed steel, High ... -carbon steel, which of strong intensity, high hardness grinding,4.It also ... than A. Suitable for the work pieces made of materials Chilled steel, High-speed steel, High-carbon ...