| 摘要 |
The tool and the tool holder each have two sections ( 18, 19, 20, 21 ) with different cross-sectional sizes arranged axially one behind the other. These sections ( 18, 19, 20, 21 ) on the tool shaft ( 3 ) and in the tool holder ( 1, 2 ) form reciprocal bearing surfaces. The first section ( 18 ) on the tool shaft ( 3 ) and the first section ( 20 ) of the tool holder ( 1, 2 ) have rotationally driving and locking means ( 5, 11, 12, 13, 14, 15, 16 ) which are operatively connected in a reciprocal manner. A tool and a tool holder are provided which are very compact and wear-resistant. To this end, the rotationally driving and locking means ( 5, 11, 12, 13, 14, 15, 16 ) are arranged in parallel in the axial direction of the shaft ( 3 ) and/or the tool holder ( 1 ), and they are arranged in series relative to each other in the circumferential direction. In addition, the distance between the rotationally driving and locking means ( 5, 11, 12, 13, 14, 15, 16 ) in the first section ( 18, 20 ) of the shaft ( 3 ) and/or the tool holder ( 1 ) and the cross-sectional transition from the first section ( 18, 20 ) to the second section ( 19, 21 ) having the larger cross section is shorter than the region of the shaft ( 3 ) and/or the tool holder ( 1, 2 ) equipped with the rotationally driving and locking means ( 5, 11, 12, 13, 14, 15, 16 ).
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