| 摘要 |
The invention relates to a drilling tool (11), comprising a drill shank (22) which has an inner chip space (13) and an outer chip space (14) which extend axially along the drill shank (22) and which in each case accommodate at least one indexable insert (21, 22), the drill shank (12) having a left-hand twist for damping vibrations and increasing the cutting capacity.
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