The 5 flute design of the HEV-5 provides a significant lift in tool life and productivity, while increasing feed rates over 4-fluted tools. Its variable pitch geometry, high flute count, and Aplus coating make it excel in tough materials like steels, tool steels, cast iron, titanium, and titanium alloys. Cutter Diameter 5/16 Shank Diameter 5/16 Corner Radius .030 Length of Cut 7/16 Overall Length 2 Flutes 5