Corner Radius End Mill: 1/4" Dia, 1/2" LOC, 0.02" Radius, 4 Flutes, Solid Carbide 4" OAL, 1/4" Shank Dia, 38 ° Helix, AlTiN Coated, Single End, Centercutting, Series End Mills for Steels & High Temperature Alloys - Corner Radius - 4 Flute - Variable...