| 摘要 |
<p>A socket wrench drive extension (9) incorporates a quick release and locking feature. The extension (9) is used in conjunction with a ratchet drive and standard mechanics sockets for driving threaded fasteners. The extension uses a longitudinal control bar (14) which bears directly or indirectly on a detent (22, 24, 37, 38) contained in a transverse bore (19) at the driving end of the extension. The control bar (14) fits in a channel (10) on the exterior and is operated through the retraction of a spring loaded collar (15).</p> |
