| 摘要 |
The invention relates to a coupling (27) for use with a holder. The invention also relates to a tool that can be attached to a holder using such a coupling. The coupling comprises a slot (26) to hold the holder in a retaining position, a channel (25) defining a pathway which permits movement of the holder from an outer peripheral edge of the coupling into the retaining position, and having a cam surface (30) on its outer peripheral edge about which the coupling can be moved to facilitate movement of the holder out of the retaining position into alignment with the channel for removal. |
