4″ SHELL 12 FLUTE ROUGHING END MILL

Cobalt Roughing Shell Type End Mill, 4″ Cutter Diameter, 2-1/4″ Length of Cut, 1-1/2″ Hole of Cut, M42 Cobalt High Speed Steel, 12 Flutes, Coarse Pitch, 20° Right Hand Helix, Right Hand Cut, Sinusoidal Tooth Form, 1 per Pack