Abstract: An indexable cutting insert for milling of a root between two cogs of a cog wheel includes a top surface forming a chip surface, a bottom surface, a side surface forming a clearance surface, a first and a second curved cutting edge formed at an intersection between the top surface and the side surface for milling of the root between the two cogs. The bottom surface includes a first planar abutment section and a second planar abutment section. A first groove extends in the first abutment section and a second groove extends in the second abutment section, each along an axis parallel to a virtual line connecting the apexes of the first and second cutting edges. A first and a second stop section extend across the virtual line, wherein the first stop section protrudes above the first abutment section and the second stop section protrudes above the second abutment section.

Abstract: An indexable cutting insert for milling of a root between two cogs of a cog wheel includes a top surface forming a chip surface, a bottom surface, a side surface forming a clearance surface, a first and a second curved cutting edge formed at an intersection between the top surface and the side surface for milling of the root between the two cogs. The bottom surface includes a first planar abutment section and a second planar abutment section. A first groove extends in the first abutment section and a second groove extends in the second abutment section, each along an axis parallel to a virtual line connecting the apexes of the first and second cutting edges. A first and a second stop section extend across the virtual line, wherein the first stop section protrudes above the first abutment section and the second stop section protrudes above the second abutment section.