Seco Niagara Cutter 17000084 DIAXRR430 Center Cutting Medium Length Single End End Mill, 1/8 in Dia Cutter, 0.01 in Corner Radius, 3/8 in Length of Cut, 4 Flutes, 1/8 in Dia Shank, 3 in OAL, DiamondPlus CVD Coated