Helical Solutions 82742 | H45AL-C-M-30500-R.060 0.5000" (1/2) Diameter x 0.5000" (1/2) Shank x 0.0600" Corner Radius x 4.0000" (4) OAL x 1.6250" (1-5/8) LOC 3 Flute ZPLUS Coated Corner Radius End MillHelical Solutions 82742 H45AL C M 30500 R. 060 0. 5000" (1 2) Cutter DIA x 0. 5000" (1 2) Shank DIA x 0. 0600" Radius x 1. 6250" (1 5 8) Length of Cut x 4. 0000" (4) Overall Length Carbide 45 Degree Helix Corner Radius End Mill for Aluminum, 3 Flutes, ZPLUS Coated (H45AL C M 30500 R. 060). From the Helical Solutions End Mills for Aluminum 3 Flute Corner Radius 45 Degree Helix Chipbreaker Rougher product family.