| 摘要 |
A wrench includes a handle having first and second ends spaced along a longitudinal axis. The second end of the handle includes a receptacle extending in a radial direction perpendicular to the longitudinal axis. The handle further includes an annular groove intermediate the first and second ends along the longitudinal axis. The second end of the handle is slideably received in an extension. A positioning hole extends from an inner periphery through an outer periphery of the extension. A positioning member is mounted in the receptacle and biased by a spring to extend through the positioning hole, with a portion of the positioning member pressing against the inner periphery of the extension. A resilient retaining member is mounted in the annular groove. An exposed portion of the retaining member outside of the annular groove presses against the inner periphery of the extension when the extension is engaged with the handle. |
