| 摘要 |
<p>The object of the invention is to enhance the usefulness of an improved ratchet hand tool (45-1), with supplementary means of rotating the drive. The improvement consists of an extension handle (8-1) for tool (45-1), for reaching into areas with difficult access, and an air-assisted extension handle (9-1) for tool (45-1) to provide an air-powered ratchet tool.</p> |
