Patent ID: 8277153

Claim:
In combination, a cutting insert and shim for heavy machining operations, the cutting insert comprising: two opposing end surfaces, two opposing minor side surfaces extending between the two opposing end surfaces, two opposing major side surfaces extending between the end surfaces and the minor side surfaces, each end surface having four corners comprising two lowered corners and two raised corners, each end surface provided with two raised members and two lowered abutment members, each lowered abutment member having a shim abutment surface, wherein the shim abutment surfaces are diagonally opposite each other with respect to a central axis A 2 passing through the two minor side surfaces of the cutting insert, the shim comprising: two opposing end surfaces, two opposing minor side surfaces extending between the two opposing end surfaces, two opposing major side surfaces extending between the end surfaces and the minor side surfaces, one end surface having four corners comprising two lowered corners and two raised corners, the one end surface being provided with two raised abutment members and two lowered members, each raised abutment member having an insert abutment surface, wherein the insert abutment surfaces are diagonally opposite each other with respect to a central axis A 2 passing through the two minor side surfaces of the shim, wherein the shim abutment surfaces of the cutting insert engage the insert abutment surfaces of the shim when the cutting insert and shim are mounted within an insert pocket of a cutting tool.