Rotary cutting tool

Abstract

A rotatable cutting tool is disclosed and includes an elongate body having a longitudinal axis, a proximal end and a distal end. The cutting tool further includes at least one helical flute extending over a cutting length of the elongate body, the helical flute having a first end and a second end. The helical flute includes a leading cutting wall having an edge, a trailing cutting wall having an edge, and a flute surface between the leading cutting wall and the trailing cutting wall, the flute surface including a curved surface portion including a constant radius from the longitudinal axis of the elongate body. The cutting tool further includes a plurality of reliefs evenly spaced along the leading and trailing walls of the helical flute, each of the reliefs forming a semi-circular cutout on the flute surface, and wherein the reliefs in the trailing cutting wall are longitudinally offset from the reliefs in the leading cutting wall.

Dependencies are inferred from the claim text.