Description:BT30-ER16-70 Collet Chuck Holder for CNC MillingSpecification:          Model       BT30-ER16-70           Material       20CrMnTi           Hardness       !#!amp!*!gt; HRC56            Accuracy       !#!amp!*!le; 0.005mm           True roundness       !#!amp!*!lt; 0.8!#!amp!*!mu;m           Carburizing depth       !#!amp!*!gt; 0.8mm           Quantity       1pcs        Features: -The handle has stable performance and long service life、 after heat treatment has been greatly improved in hardness handle. -Advanced production technology to ensure the accuracy of the handle、 to meet your requirements in high precision machining. -Raw materials、 20CrMnTi steel、 -Chuck holder is stable using life、 advanced vacuum quenching furnace to achieve carbon and nitrogen Co doped increase the hardness of the handle. -The life rate is high、 and the cost can be reduced.   Application: It's suitable for drilling、 milling、 engraving、 high precision、 widely used in precision machining.   Attention: -CNC tool placement collet、 must go beyond the collet hole effective clamping length. -Use the correct wrench device、 can not be arbitrarily changed so as not to cause damage. -Do not use the rod with a notch or a plane of the CNC cutting tools. -Do not air lock (not inserted in the chuck Holder).  Package Included:1!#!amp!*!times; BT30-ER16-70 Milling Chuck HolderMore Details: