| 摘要 |
<p>A removable blade 62A for a cutting tool (10, Fig 7) comprises first and second edges 64A, 66A, the second edge 66A extending outwardly from the blade body 68A by at least about 0.02 inches beyond the first cutting edge 64A. In use, the first edge 64A may extend radially across an end of the tool (10), and the second cutting edge 66A may be positioned adjacent an outer circumference of the tool (10). The blade 62A may comprise a recess or protrusion for engagement with the tool (10) to orientate the first and second cutting edges 64A, 66A with respect to the cutting tool (10). First cutting edge 64A may be orientated with respect to a cutting end of the blade body 68A at an angle Al greater than the angle A2 of the second cutting edge 66A with respect to the cutting end. The blade body 68A may include a locking surface for securing the blade body 68A in the tool.</p> |
