pMorse End Mill, Ball Nose Center Cutting Regular Length Single End, Series 5942T, 516 in Diameter Cutter, 212 in Overall Length, 1316 in Maximum Depth of Cut, 4 Flutes, Spiral Flute, 516 in Shank Diameter, Right Hand Cutting Direction, 30 deg Helix Angle, PlainRound Shank, Solid Micrograin Carbide, TiALN Coatedp.