| 摘要 |
<p>The tool has at least one axial open longitudinal groove (4,9) on the free end of its fastening shaft (1,6). The longitudinal groove and a locking groove (3,8) have shoulder faces (3a,8a) at each end of the shaft which overlap. At least one further axially continuous locking groove (5,10) and a rotary carrying groove (2,7) are provided which also have overlapping shoulder faces (5a,10a) at each end of the shaft.</p> |
