| 摘要 |
A ratchet-action open-end wrench of the present invention has a simplified structure. Arc-shaped abutting surface and corresponding groove is dismissed from the present wrench. Thus, components of the wrench can be manufactured and fabricated easily, and 5 specified producing process can be chosen for obtaining strengthened structure. In addition, cost of the wrench is abated, precision of the wrench is arisen, and lift-time of the wrench is prolonged. |
