1.Material: 65Mn2.Hardness: HRC55-60 working surface3.Ensured runout accuracyCollets with round, hexagon and square holesVarious standard of DIN4.Suitable nuts, collet chuck sand collet drawbarsIn sets to your order 5.We have wooden or plastic box for sets Inner packing:Plastic  bagsOuter  packing:Standard  cartons

OEM