| 摘要 |
An improved structure of the wrench is disclosed. The wrench relates generally to the end of the handle is mounted with an open jaw module. The open jaw module has an end protrusion of the handle relatively provided with a smaller path of an insert lever, and an open jaw is mounted. The end of the open jaw is relatively formed into an insert recess of the insert lever. In accordance with the above mentioned for the specific structure design, the user will depend on his requirements to change for the difference standard of the open jaw.
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