| 主权项 |
1. A cutting insert comprising:
at least one cutting edge (8) formed on an intersecting ridge line portion between a rake surface (6) and a flank (7), each cutting edge including a cutting edge portion (9) extending along a corner portion (5) and a straight-line shaped cutting edge portion (10) connecting to the cutting edge portion of the corner portion; and at least one ridge (12) formed to rise on the rake surface (6), wherein the ridge (12) extends from a portion of a rake surface inside the cutting edge portion (9) of the corner portion (5) toward a rake surface inside the straight-line shaped cutting edge portion (10). |
