5 Flute, 45° Helix, eccentric grind provides a smooth cutting action with superb chip evacuation. 20% increase in productivity over 4 fluted tool. High performing, broad spectrum semi-finisher/finisher. Outstanding in stainless steels, high temp alloys, and mold steels up to 45 Rc. Minimal tool deflection equals better part tolerance. PowerA (AlTiN) coated.