... quality drill chuck for different applications.-Key-type drill chuck: light duty with threaded mounted:10mm, 13mm, 16mm-Key-type drill chuck ... light duty with taper mounted: 10mm, 16mm-Medium&Heavy duty key-type chuck: 10mm, 13mm, 16mm ... with carbide jaws: 13mm-H.P.K.C.-Keyless automatic duty drill chuck:6mm, 10mm, 13mm, 16mm-Keyless chuck with lock ...