1,High accuracy of er collets 0.015mm ,sk high speed 2,collet .precision 0.015mm 3Made of special material steel:65mn Specifications1,High accuracy of er collets 0.015mm ,sk high speed 2,collet .precision 0.015mm 3Made of special material steel:65mn1.Made of special elastic steel material:65Mn 2.Power clamping ability,high accuracy 3.USed for boring,milling,drilling,etcwelcome inquiring more ...