| 摘要 |
A socket wrench includes a socket element which is provided with a socket or engagement with a bolt or nut, and a hinge to act in combination with a handle and which forms a lever arm when tightening or loosening bolts or nuts. The handle is fitted at a first end thereof with a hinge half to act in combination with a socket element having a second hinge half. The handle is fitted at a second end thereof with a hinge and a socket element or other form of nut wrench.
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