Patent ID: 11945034
Assignee: MOLDINO TOOL ENGINEERING, LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 11:
12. The cutting insert according to claim 1,
wherein, in an outer peripheral portion of the polygonal surface, a protruding ridge portion that protrudes with respect to the boss surface is formed along the minor cutting edge of the portion extending to the region of the boss surface,
the inclined face is formed on an outer peripheral surface of the protruding ridge portion facing the outer periphery side of the polygonal surface,
the boss surface is a plane perpendicular to the insert center line,
an inclined portion that is inclined to protrude in a direction of the insert center line as the inclined portion goes from the boss surface toward the cutting edge side is formed on the polygonal surface, and
the protruding ridge portion and the inclined portion are formed in an inside part of an outer periphery part of the insert alternately.