Er Collet, Collect Chuck, Live Center manufacturer / supplier in China, offering Manufacturer Bt Fmb Collet Chuck Bt Fmb Adapt Tool Holder for CNC Machine Center, CNC Machine Tools Holders Bt30 Bt40 Bt50 Er Collet Chuck Tool Holder for Milling, Bt50 Er Collet Chuck Tool Holder Bter16 Er20 Er25 Er32 Er40 Er50 Milling Chuck and so on.