... High Quality of various drill chuck, keyless, key-type, self-lock upon different purposesWe supply various types of professional high quality ... chuck for different applications.-Key-type drill chuck: light duty with threaded mounted:10mm, 13mm, 16mm-Key-type drill chuck ... chuck with carbide jaws: 13mm-H.P.K.C.-Keyless automatic duty drill chuck:6mm, 10mm, 13mm, 16mm-Keyless chuck with lock function ...