| 摘要 |
<p>A milling or router tool has two cutting edges (20) feeding two parallel spiral grooves (10, 10a) through which the swarf particles are removed. Each cutting edge has a first cutting edge (21) formed by an acute angled spiral cutting groove (10), and a second cutting edge (22) that is parallel to the first (21). The radius described by the second cutting edge (22) is greater than that of the first (21). The other spiral groove (10) forms a truncated angular wall.</p> |
