| 摘要 |
A ratchet wrench includes a handle, a drive head, a ratchet wheel, a pawl member, a control knob, a positioning plate, and an urging spring. Thus, the ratchet wrench includes a positioning plate to push the pawl member, thereby reducing the volume of the ratchet wrench efficiently. In addition, the urging spring is supported and guided by the guide shaft of the positioning plate, so that the positioning plate is not easily deformed, thereby facilitating movement of the urging spring in the positioning plate.
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