Importance

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Abstract

A rotary cutting tool with a longitudinal axis includes a shank portion, a cutting portion defining a length of cut. The cutting portion includes a plurality of blades separated by flutes. The blades and flutes extend substantially along the length of cut. The flutes have a tapered depth along the longitudinal axis. Each blade includes a leading face, a trailing face, a land surface that extends between the leading face and the trailing face, and a cutting edge at the intersection between the leading face and the land surface. Each blade includes a wave pattern that begins at a first distance from the cutting tip for a first blade, and at a second distance from the cutting tip for an immediately adjacent blade. The wave pattern then repeats in an alternating fashion for each additional blade.

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First Claim