pMorse End Mill, Center Cutting Double End Regular Length, Series 4553, 2564 in Cutter Dia, 418 in Overall Length, 1 in Maximum Depth of Cut, 4 Flutes, Spiral Flute, 12 in Shank Dia, Right Hand Cutting, 30 deg Helix Angle, RoundWeldon Flat Shank, HSS, Brightp.