KC1301.1 to tighten or loosen the jaws of a chuck, a type of clamp that is used to hold a cylinder object. On a lathe, the chuck holds the rotating piece—and on a drill or mill, it holds the rotating tool.
"Chuck capacity:1.5-13mm
Connection size:1/2""-20UNF
With 1pcs adaptor
With 1pcs chuck key
Packed by color box"