Patent ID: 9682434
Date: 2017-06-20
CPC Classifications: B23C,Y10T

Claim:
1. A milling cutter, comprising: a shank portion; a cutting portion having a cylindrical outer surface, the cutting portion defining an axis of rotation of the cutter about a central, longitudinal axis; at least one major cutting edge extending from an end face toward the shank portion; at least one minor cutting edge disposed at the end face of the cutting portion, the end face defining an outer diameter, D, of the milling cutter; a corner formed at an intersection of the end face and the relief surface; and a relief surface formed on the cylindrical outer surface proximate the corner and extending from the end face toward the shank portion, wherein the corner is formed at an angle less than 90°, and wherein the relief surface is parallel to the central, longitudinal axis of the milling cutter such that the at least one major cutting edge cuts a perfect 90° shoulder in a workpiece during a machining operation.