| 摘要 |
PCT No. PCT/SE96/00032 Sec. 371 Date Sep. 8, 1997 Sec. 102(e) Date Sep. 8, 1997 PCT Filed Jan. 17, 1996 PCT Pub. No. WO96/22172 PCT Pub. Date Jul. 25, 1996A thread-cutting insert includes a body and a cutting tip projecting therefrom. The cutting tip includes: a cutting edge formed by a nose edge at a front end of the cutting tip, an active cutting edge disposed on one side of a bisector of the cutting tip, and a passive edge disposed on the other side of the bisector. One thread flank is cut in a workpiece by the active cutting edge. The other thread flank is cut by the nose edge. The passive cutting edge extends rearwardly from the nose edge and is recessed inwardly from the thread flank being cut by the nose edge. |
