1.Material:spring steel 2.Collet, chuck, cnc tool,tap holder are available. 3.Competitive prices and High quality. KEY TYPE DRILL CHUCK 1.material:spring steel 2.collet, chuck, cnc tool,tap holder, cutting tool are available. ModelCapacity (mm)MountsD(mm)L1(mm)L2(mm) J2160.6-6B10305039.5J21101-10B1243.57456.5J21131-13B16538665J21131-13B18539373J21163-16B18579571.5J21163-16B16579571.5J21205- ...