Er Collet, Collect Chuck, Live Center manufacturer / supplier in China, offering Milling Tool Bt40 Bt50 Er32 Angle Head 90 Degree Milling Angle Head, Holder Accessories Er16 Er20 Er32 Er40 High Precion Milling Collet Set, Bt Jt Nt Boring Tool Nbj16 Micro Boring Bar Tool Holder and Micro Precision Boring Head and so on.