Corner Radius End Mill: 1/2" Dia, 1" LOC, 0.03" Radius, 4 Flutes, Solid Carbide 6" OAL, 1/2" Shank Dia, 38 ° Helix, AlTiN Coated, Single End, Centercutting, Series End Mills for Steels & High Temperature Alloys - Corner Radius - 4 Flute - Variable Helix...