Seco Niagara Cutter 03043602 SN200R High Feed Non-Center Cutting Short Length Single End End Mill, 5/16 in Dia Cutter, 0.0373 in Corner Radius, 0.016 in Length of Cut, 2 Flutes, 3/8 in Dia Shank, 3-1/2 in OAL, AlTiN Coated