| 摘要 |
The invention relates to a rod-shaped tool made of sintered material that is used to machine a workpiece. Said tool comprises a rod center axis ( 1 ), a shaft area ( 6 ) and a chip space area ( 5 ) adjacent thereto in the direction of the rod center axis ( 1 ). The tool has at least one outside chip space ( 4 ), which encircles the rod center axis ( 1 ), in the chip space area ( 5 ) but not in the shaft area ( 6 ). The chip space ( 4 ) is situated at a minimum distance (a) from the rod center axis ( 1 ). A central recess ( 7 ) extends in the direction of the rod center axis ( 1 ) over the shaft area ( 6 ) whereby leading up and into the chip space area ( 5 ). The central recess has, in the chip space area ( 5 ), a non-circular cross-section and is situated at a maximum distance (A) from the rod center axis ( 1 ), said maximum distance being at least as large as the minimum distance (a) |
