| 摘要 |
The file shaft has an inner part (20) and an intermediate part (30) with a cavity between the front (10) and inner part. In the file shaft inner part is formed a support surface (22) arranged so that by bending activation of the shaft it is located against a peripheral area of the tongs, thereby radially clamping the file (40) between it and a part of wall parts in the insertion opening (12), the wall parts being radially and axially opposed. |
