| 摘要 |
<p>A wrench (10) for rotating a member comprises an elongate body (12) having a head portion (18). The wrench may include a drive mechanism (80) mounted to the head portion. The drive mechanism may comprise a drive gear (70) and a clutch gear (60). The drive gear may include a drive element (82) for engaging the member (158). The clutch gear may be operatively coupled to the drive gear and may be rotatably supported by a unidirectional roller clutch (90).</p> |
