| 摘要 |
<p>Pneumatic socket wrench has a stop arrangement (50) with a cylindrical mounting seat (51) that has a closed end and an open end, a cam (60) that is rotationally mounted on the first closed end and a cover (56) applied to the second end. A hammer (65) is mounted in the mounting seat and meshes in the cam so that it driven rotationally by the cam. The hammer is held in the seat by a middle section of its side surface. The rotational axle (66) of the hammer has two opposing sides, each of which has a projecting strengthening rib to increase the strength of the hammer.</p> |
