Seco Niagara Cutter 03043617 SN400R High Feed Non-Center Cutting Short Length Single End End Mill, 1/2 in Dia Cutter, 0.0614 in Corner Radius, 0.02 in Length of Cut, 4 Flutes, 1/2 in Dia Shank, 4-1/2 in OAL, AlTiN Coated