Patent ID: 7896586

Claim:
An indexable insert comprising: a first and a second substantially triangular insert surface; three side faces; and at least one cutting projection located in a corner region between the first and second side faces, wherein the cutting projection is substantially M-shaped and comprises a first and a second cutting tooth, wherein a first cutting edge is provided on at least the first cutting tooth in a transition region to the first tip face, wherein a second cutting edge is provided on at least the second cutting tooth in a transition region to the second tip face, wherein a first chip removal direction associated with the first cutting edge forms an angle with a second chip removal direction associated with the second cutting edge, and wherein the first and second cutting edges are respectively associated with a first and a second chip guide surface in the chip removal direction, the first chip guide surface having at least one first groove on the first insert surface extending substantially perpendicular to the first chip removal direction between the first side face and the second side face, and the second chip guide surface having at least one second groove on the second insert surface extending substantially perpendicular to the second chip removal direction between the first side face and the second side face.