发明申请
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 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.
公开/授权文献
- US08701528B2 Ratchet-action open-end wrench 公开/授权日:2014-04-22