Patent ID: 7070363

Claim:
An indexable cutting insert for a high-speed, long edge milling cutter, comprising: a top surface having a substantially planar central portion, a substantially planar bottom surface, and a plurality of side surfaces; one side surface including a flat surface extending from the bottom surface and a margin extending from the top surface to the flat surface; a long cutting edge defined at an intersection between the top surface and the margin of one of the side surfaces; a corner radius cutting edge defined at an intersection between the top surface and one of the side surfaces; a facet radius cutting edge defined at an intersection between the top surface and one of the side surfaces; and a ramping cutting edge defined at the intersection between the top surface and one of the side surfaces, wherein the margin extends around a nose radius of said cutting insert and blends into the flat surface, and wherein a margin angle formed by the margin is less than a seating angle formed by the flat surface.