Prototyp Supreme End Mill, Standard, Series: MC326, 12.7 mm Diameter Cutter, 88.9 mm Overall Length, 25.4 mm Length of Cut, 4 Flutes, 12.7 mm Shank Diameter, Right Hand Cutting Direction, 50 deg Helix Angle, Weldon Flat Shank, ANSI Code: MC326.12.7W4D-WK40TF, ISO Code: MC326.12.7W4D-WK40TF, Solid Carbide, WK40TF Coated