Helical Solutions 83555 | H40ALV-RN-X-30125 H40ALV-RN-X-30125 0.1250" Diameter x 0.1250" Shank x 0.1562" LOC x 3.0000" OAL x 1.5000" Reach Carbide 40 Degree Helix 3 Flute Uncoated Square End Mill for AluminumHelical Solutions 83555 H40ALV RN X 30125 0. 1250" (1 8) Cutter DIA x 0. 1250" (1 8) Shank DIA x 0. 1562" (5 32) Length of Cut x 3. 0000" (3) Overall Length x 1. 5000" (1 1 2) Reach Carbide 40 Degree Helix Square End Mill for Aluminum, 3 Flutes, Uncoated (H40ALV RN X 30125). From the Helical Solutions End Mills for Aluminum 3 Flute Square 40 Degree Helix Variable Pitch Reduced Neck product family.