Mill Diameter Inch 532 Number of Flutes 2 Material Cobalt Length of Cut Inch 716 Shank Diameter Inch 38 FinishCoating Bright Single or Double End Double Center Cutting Yes Overall Length Inch 318 Flute Direction Right Cutting Direction Right Variable Helix No Helix Angle 30 Excellent tool geometry for slotting, keying and general purpose milling, plus the added economy offered by the doubleend design 2 helical flutes Centre cutting Double end with weldon shank