Patent ID: 7168512

Claim:
A cutting insert, comprising: a base body including a first base surface and a second opposing base surface; at least one lateral surface extending between the first and second base surfaces, said at least one lateral surface including a cone-mantel-shaped portion extending from said first base surface and forming an acute angle therewith, and a planar surface portion extending from said second base surface and forming an obtuse angle therewith, the cone-mantel-shaped portion and the planar surface portion forming an arcuate-shaped edge therebetween; at least one edge chamfer surface disposed between said first base surface and said planar surface portion; and at least one cutting edge formed at an intersection between the cone-mantel-shaped portion and said first base surface, said at least one cutting edge having a radius of curvature, R, defined by a cone axis that is parallel offset by a distance with respect to a central axis of the cutting insert.