| 摘要 |
A chuck for use with a manual or powered driver having a drive shaft, the chuck including a body having a nose section and a tail section, the tail section configured to rotate with a drive shaft of a driver and the nose section having an axial bore formed therein, plurality of jaws disposed within the body in communication with the bore, each of the jaws having a jaw face formed thereon for engagement with a tool shaft, and a visual indicator disposed on the body and including a surface on which is defined a visual indicia that is in operative communication with the jaws so that movement of the jaws to a predetermined position with respect to the bore exposes the indicia to view from outside the chuck and so that movement of the jaws from the predetermined position blocks the indicia from view from outside the chuck. |
