Mill Diameter Inch 764 Number of Flutes 2 Material Cobalt Length of Cut Inch 932 Shank Diameter Inch 316 FinishCoating Bright Single or Double End Double Center Cutting Yes Overall Length Inch 258 Flute Direction Right Cutting Direction Right Variable Helix No Helix Angle 30 Longer flute length Suitable for finishing of precision components such as watch, camera and electronic apparatus molds Long length 2 helical flutes Double end with straight shank