Corner Radius End Mill: 1/4" Dia, 3/8" LOC, 0.5 mm Radius, 3 Flutes, Solid Carbide 4" OAL, 1/4" Shank Dia, 45 ° Helix, Zplus Coated, Single End, Centercutting, Series End Mills for Aluminum - 3 Flute - Corner Radius - 450 Helix - Chipbreaker Rougher -...