Patent ID: 7578640

Claim:
A non-indexable cutting insert comprising: an upper surface, a lower surface and a peripheral side surface extending between the upper and lower surfaces; the peripheral side surface comprising opposing forward and rear surfaces and opposing side surfaces extending between the forward and rear surfaces; a first cutting edge formed at the intersection of a forward portion of the upper surface with an upper portion of the forward surface; and a clamping recess formed at an intersection between a rear portion of the upper surface and an upper portion of the rear surface, the clamping recess comprising a recess abutment surface extending widthwise of the rear surface, the recess abutment surface being arcuate, in a top view of the insert, wherein: the lower surface is stepped in a side view of the cutting insert, the lower surface having a lower locating surface that is vertically spaced apart from a non-locating free surface by a forward locating surface.