Helical Solutions 83406 | H45AL-M-20125 0.1250" (1/8) Cutter DIA x 0.1250" (1/8) Shank DIA x 0.6250" (5/8) Length of Cut x 2.5000" (2-1/2) Overall Length Carbide 45 Degree Helix Square End Mill for Aluminum, 2 Flutes, ZPLUS Coated - (H45AL-M-20125)Helical Solutions 83406 H45AL M 20125 0. 1250" (1 8) Cutter DIA x 0. 1250" (1 8) Shank DIA x 0. 6250" (5 8) Length of Cut x 2. 5000" (2 1 2) Overall Length Carbide 45 Degree Helix Square End Mill for Aluminum, 2 Flutes, ZPLUS Coated (H45AL M 20125). From the Helical Solutions End Mills for Aluminum 2 Flute Square 45 Degree Helix product family.