It is produced by high grade alloy steel. Its surface hardness is up to HRC58-62, and the center has very good flexible, which is suitable for strong holding in the condition of heavy load cutting.The parallelism of the tong is 0.015mm/length, and the vertically between the jaws and the working table is 0.02mm/50mm. It is widely used to finish the process of milling, boring, drilling and grinding in CNC machine, boring machine, milling machine, flat grinding machine and drilling machine.
