Mill Diameter mm 18 Number of Flutes 2 Material Cobalt Length of Cut Inch 1516 Shank Diameter Inch 58 FinishCoating Bright Single or Double End Single Center Cutting Yes Overall Length Inch 3716 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 Single end with weldon shank Centre cutting Keyway tolerance