pMorse Roughing End Mill, Center Cutting Regular Length, Series 4611, 516 in Cutter Dia, 212 in Overall Length, 34 in Maximum Depth of Cut, 4 Flutes, Coarse Pitch Flute, 38 in Shank Dia, Right Hand Cutting, 30 deg Helix Angle, RoundWeldon Flat Shank, Cobalt 8M42 HSS, Brightp