| 摘要 |
<p>In order to provide a rotary tool, in particular a drill (2), with a long service life together with high-quality drill holes, particularly in the case of through bores, the invention provides a cutting head (4) which extends along a rotational axis (10) and has a plurality of main cutting edges (6, 8) which extend radially outwards and each end at a cutting corner (16) having a corner bevel, wherein the corner bevels are of differing designs, specifically in the form of a roughing bevel (18) and in the form of a finishing bevel (20).</p> |
