Seco Niagara Cutter 17002344 Elite S938R High Performance Multi-Flute Non-Center Cutting Single End Stub Length End Mill, 5/8 in Dia Cutter, 0.06 in Corner Radius, 3/4 in Length of Cut, 9 Flutes, 5/8 in Dia Shank, 3 in OAL, AlTiN Coated