Mill Diameter Inch 1 Number of Flutes 2 Material High Speed Steel Length of Cut Inch 158 Shank Diameter Inch 1 FinishCoating Bright Single or Double End Single Center Cutting Yes Overall Length Inch 418 Flute Direction Right Cutting Direction Right Variable Helix No Helix Angle 30 These end mills are furnished as regular with righthand cutting and righthand helical flutes All shanks are flatted for holder set screw Designed for slotting, drilling, pocketing and generalpurpose operation 2 helical flutes Centre cutting Single end with weldon shank Keyway tolerance