Patent ID: 8267625

Claim:
An insert comprising: a cutting edge, wherein the cutting edge is formed at a junction of a cutting face, a left sidewall and a right sidewall, and wherein the cutting edge forms a narrow outer end at a tip of the insert and a larger width region at a distance inward from the narrow outer end; at least one primary radius, wherein the at least one primary radius is located at the tip of the insert; at least two secondary radii, wherein the at least two secondary radii are located on opposite sides of the cutting edge near a mounting portion of the insert; at least two outwardly extending tertiary radii, wherein the at least two outwardly extending tertiary radii are located on opposite sides of the cutting edge between the at least one primary radius and the at least two secondary radii; at least two inwardly extending tertiary radii, wherein the at least two inwardly extending tertiary radii are located on opposite sides of the cutting edge between the at least two outwardly extending tertiary radii and the at least two secondary radii; and a clearance angle, wherein the clearance angle extends rearward from the cutting edge.