| 摘要 |
The invention relates to a drilling tool for machine tools. The drilling tool comprises a drill body, a cutting head arranged on the front face of said drill body and a shaft arranged at the end thereof, wherein the drill body has two chip flutes, which are delimited at their flanks by ribs and a first chip flute of which is spirally curved. A special feature of the invention is that a second chip flute is not spiraled or is spirally curved with a pitch differing from the first chip flute, preferably running in the same direction of rotation.
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