Patent ID: 8708610

Claim:
A cutting insert ( 14 ) comprising: opposing insert side surfaces ( 18 ); opposing insert upper and lower surfaces ( 20 , 22 ) extending between the insert side surfaces ( 18 ), at least a portion of the insert upper surface ( 20 ) constituting a rake surface ( 40 ); opposing insert front and rear surfaces ( 24 , 26 ) extending between the insert side surfaces ( 18 ) and the insert upper and lower surfaces ( 20 , 22 ), at least a portion of the insert front surface ( 24 ) constituting a relief surface ( 38 ); a cutting edge ( 44 ) formed at an intersection of the rake and relief surfaces ( 40 , 38 ); a stopping recess ( 28 ) located between the insert upper and lower surfaces ( 20 , 22 ) and having an asymmetric shape; and an interposing first portion ( 30 A) located adjacent the stopping recess ( 28 ) and between the stopping recess ( 28 ) and the insert lower surface ( 22 ), wherein: the insert front surface ( 24 ) comprises: a front first sub-surface ( 24 A) extending from the insert upper surface ( 20 ), and a front second sub-surface ( 24 B) which is recessed relative to the front first sub-surface 24 A); the insert lower surface ( 22 ) comprises: a lower first sub-surface ( 22 A) extending between the insert rear surface ( 26 ) and the front second sub-surface ( 24 B), and a lower second sub-surface ( 22 B) extending between the front first sub-surface ( 24 A) and the front second sub-surface ( 24 B); the insert rear surface ( 26 ) comprises: a rear first sub-surface ( 26 A) extending from the insert upper surface ( 20 ), and a rear second sub-surface ( 26 B) extending from the lower first sub-surface ( 22 A) and following a straight line in a plan view of one of the insert side surfaces ( 18 ); wherein the stopping recess ( 28 ) is located between the rear first and second sub-surfaces ( 26 A, 26 B).