| 摘要 |
A wrench includes a handle and a set of driving members to be selected to b e coupled to the handle. Each of the driving members has a connecting portion complementary to the connecting portion of the handle. A coupling device is disposed at the connecting portion of the handle to detachably coupling the connectin g portion of the driving member and the connecting portion of the handle. The coupling device forms a rotation axis; of the driving member, such that the driving member c an rotate. As a result, the driving members can be replaced quickly to the handle to me et the specific work.
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