| 摘要 |
The tool (100) has a base body (110) comprising accommodating openings uniformly arranged around a central rotational axis (R1), where each of the openings has an elongate shape with a longitudinal axis. The longitudinal axes of the openings form a rotational hyperboloid that is rotationally symmetric to the rotational axis. The openings open into a conical surface of a truncated cone-shaped region of the base part. The directly adjacent openings have minimum distance in a region of work piece-side front side of the base body. |
