US Patent 9381582 Milling tool with recessed cutting edge

A milling tool includes a tool body having a longitudinal axis and a first end. A plurality of flutes are provided in the tool body and extend to the first end of the tool body. A plurality of cutting edges are provided. Each cutting edge is associated with a respective one of the plurality of flutes, each cutting edge being substantially identical to each other one of the plurality of cutting edges except that at least one but not all of the cutting edges is a recessed cutting edge and at least one but not all of the cutting edges is a non-recessed cutting edge. Each recessed cutting edge begins at a non-zero distance from the first end of the tool body and each non-recessed cutting edge extends to the first end of the tool body.