Seco Niagara Cutter, 17000443, Thread Mill, Series: NTM120, 5/8 in Thread, Internal/External Thread, 0.47 in Diameter Cutting, 1.25 in Length of Cut, 4 in Overall Length, 4 Flutes, Cylindrical Shank, 0.5 in Shank Diameter, 2.492 in Shank Length, Solid Carbide, AlCrN