pMorse End Mill, NonCenter Cutting Regular Length Single End, Series 1897, 1316 in Cutter Dia, 4 in Overall Length, 178 in Maximum Depth of Cut, 6 Flutes, Spiral Flute, 58 in Shank Dia, Right Hand Cutting, 30 deg Helix Angle, RoundWeldon Flat Shank, HSS, Brightp.