1.The tool is characterized by high hardness and wear resistance. 2.This can be used with different types of milling machines. 3.It is widely used for milling and lathe accessories. 4.The carburizing and quenching process, which makes the handle withstand a certain impact and load, strong toughness, super clamping force, no loosening, no deformation, long service life. 5.We use excellent workmanship to achieve a smooth surface that will not hurt your hands.