Compound fillet radii cutter

A method of milling a workpiece comprising:

• mounting a cutter to a tool articulator, wherein the cutter comprises:
• a shaft;
• a frustoconical cutting surface;
• a small radius cutting surface comprising an arc length of a first circle;
• and
• a large radius cutting surface comprising an arc length of a second circle,
• wherein the frustoconical cutting surface is disposed between the shaft and the small radius cutting surface,
• wherein the small radius cutting surface is disposed between the frustoconical cutting surface and the large radius cutting surface, and
• wherein a juncture of the small radius cutting surface and the large radius cutting surface comprises a tangential union, and
• wherein a radius of the first circle is smaller than a radius of the second circle;
• positioning the cutter above a workpiece;
• spinning the cutter about a centerline;
• moving the tool articulator whereby the cutter is positioned so that the small radius cutting surface contacts the workpiece;
• and
• translating the tool articulator whereby the cutter translates while maintaining contact with the workpiece.