High accuracy of er tool holders: 0.005mm
Made of special material steel:40Cr

we supply high accuracy of er collets and machine tool parts ,

Made of special elastic steel material:65Mn  40Cr

Hardness :HRC55-57,HRC 48-52

The goods are most exported to taiwan,germany,Italy,spain braizl .and other regions

we supply the competitive price and good serviec ,

Sincerely cooperate with u 

welcome inquiring more information