| 摘要 |
A drive chuck for use with a plurality of driven elements, such as for example a rock drill and a roof bolt, comprises a chuck body having an upper surface and a longitudinally extending slot formed thereon opening along the side of the chuck. The chuck body includes a base portion located generally parallel to the upper surface of the chuck body, above the lower end of the body, and both the upper surface and base portion of the chuck have recesses formed therein, in general longitudinal alignment with each other and with the slot, adapted to engage the end of a tool to be driven.
|
