Seco Niagara Cutter 10008067 Elite S Series S545R Standard Length Universal Corner Radius End Mill, 5/8 in Dia Cutter, 0.03 in Corner Radius, 1-5/8 in Length of Cut, 5 Flutes, 5/8 in Dia Shank, 3-1/2 in OAL, HTA Coated