Patent ID: 7073987

Claim:
An indexable cutting insert comprising: two identical opposing end surfaces having 180Â° rotational symmetry about a first axis passing therethrough, a peripheral side surface extending between the two opposing end surfaces, and a peripheral edge formed at the intersection of each end surface and the peripheral side surface, at least two sections of each peripheral edge constituting cutting edges; the peripheral side surface comprising: two identical opposing major side surfaces having 180Â° rotational symmetry about a second axis passing therethrough, the second axis being perpendicular to the first axis; and two identical opposing minor side surfaces having 180Â° rotational symmetry about a third axis passing therethrough, the third axis being perpendicular to the first axis and the second axis; a major plane defined by the first axis and the second axis; a minor plane defined by the first axis and the third axis; a median plane being defined by the second axis and the third axis; each end surface having four corners, two lowered corners and two raised corners, the lowered corners being closer to the median plane than the raised corners; in a side view of one of the minor side surfaces, all four corners are equidistant from the minor plane; in a side view of one of the major side surfaces, all four corners are equidistant from the major plane.