| 摘要 |
A socket wrench drive extension incorporates a quick release and locking feature. The extension is used in conjunction with a ratchet drive and standard mechanics sockets for driving threaded fasteners. The extension uses a longitudinal control bar which bears directly or indirectly on a detent contained in a transverse bore at the driving end of the extension. The control bar fits in a channel on the exterior of the extension and is operated through the retraction of a spring loaded collar. |
