| 摘要 |
The drilling tool has at least two cutting lips (1) on the drill head and chip flutes (3), which are followed in the direction of rotation of the drilling tool by a land (6) with following flute back (7) which has a clearance space (10) at the periphery. A cooling flute (8) running longitudinally and approximately parallel to the chip flutes (3) is provided in at least one flute back (7). <IMAGE>
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