| 摘要 |
A tool includes a handle having a bore for slidably receiving a stop and a link. The link has one end pivotally coupled to the stop for allowing the link to be rotated relative to the stop when the link is extended outward of the handle. A driving stem is pivotally coupled to the link for allowing the driving stem to be rotated relative to the link when the link is extended outward of the handle. A ratchet mechanism is disposed in the handle and is selectively engaged with the stop for controlling the driving direction of the driving stem.
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