| 摘要 |
<p>On the main body edges is formed at least one main cutter edge (5, 5a, b) and a flat cutter edge (5c), extending over a part of the main body periphery. The edges are bounded by swarf and free faces (40, 20, 25) on the top or side faces. On the structured top face (4) of the main body is downwards chamfered at least one corner (3) so that a limited, inclined section (9) is formed at the corner. At one corner side the main cutter edge extends into the inclined section into the corner vicinity. The flat cut edge is formed at the other corner side in the inclined section and merges into the main cutter edge. <IMAGE></p> |
