pMorse Roughing End Mill, Center Cutting Regular Length Single End, Series 4593, 114 in Cutter Dia, 412 in Overall Length, 2 in Maximum Depth of Cut, 6 Flutes, Coarse Pitch Flute, 34 in Shank Dia, Right Hand Cutting, 30 deg Helix Angle, RoundWeldon Flat Shank, HSS, Brightp.