H45AL-RN-M-20312 End Mills for Aluminum - 2 Flute - Square - 45° Helix - Reduced Neck
0.3125" (5/16) Cutter DIA x 0.3125" (5/16) Shank DIA x 0.4375" (7/16) Length of Cut x 4.0000" (4) Overall Length x 2.1250" (2-1/8) Reach Carbide 45° Helix Square End Mill for Aluminum, 2 Flutes, ZPLUS Coated - (H45AL-RN-M-20312)