| 摘要 |
<p>The unit (11) has a cylindrical main element (12) also serving as a case when the tool (11) is not in use. Several cylindrical segments (18,19), each of a different diameter are accommodated inside the main element (12), can be pulled out at the front and secured to each other with ball and spring units (28). The bit (22) inserted into the front segment (19) is also held by a ball and spring combination (23). A handle (16) which could be designed as a ratchet handle can be clipped into an opening (14) at the rear end.</p> |
