Patent ID: 8092123

Claim:
A metal cutting system comprising: a tool holder having a recess and a coolant passage for delivery of fluids, a shim comprising a bottom side abutting the tool holder in the recess, a top side opposite the bottom side and a shim orifice aligned with the coolant passage and spanning from the bottom side to the top side, an insert having a rake face having an insert depression lower than the remainder of the rake face, at least two edges intersecting to form at least one cutting corner, an insert bottom face, at least one flank face being chamfered, at least one flank edge being chamfered in the same direction as the flank face, and an insert orifice spanning from the insert bottom face to the rake face, wherein the insert bottom face is superposed on the top side of the shim, a flank face cooling channel formed between the shim and the insert terminating with a secondary discharge hole directed at the cutting edge or flank face, wherein the flank face cooling channel is in communication with the coolant passage; a top piece including a clamp side and an insert side congruently shaped to fit in the insert depression and cooperatively forming a cooling channel between the top piece and insert depression for delivery of coolant to a cutting corner or a cutting edge, wherein the cooling channel is in communication with the coolant passage and a primary discharge slot to deliver coolant to the cutting corner, wherein the primary discharge slot is located below the at least one cutting corner; and a clamp to hold the insert and the shim securely in the tool holder.