Patent ID: 8529167

Claim:
A double-sided cutting insert comprising: opposing top and bottom surfaces and a peripheral side surface extending therebetween; wherein: the peripheral side surface comprises at least two opposing major side surfaces, each of which has at least two distinct relief surfaces, each relief surface defining a major cutting edge with the top or bottom surface; the two relief surfaces are joined via a transition surface extending between the top and bottom surfaces; the peripheral side surface comprises two opposing minor side surfaces forming minor non-cutting edges with both the top and bottom surfaces, wherein the two opposing major side surfaces are joined via the two opposing minor side surfaces; the cutting insert generally has 180° rotational symmetry about a first axis (A) extending through the opposing top and bottom surfaces and 180° rotational symmetry about a second axis (B) extending substantially perpendicular to said first axis; and a through-bore extending axially along the first axis (A).