Mill Diameter Inch 78 Number of Flutes 3 Pitch Fine Length of Cut Inch 78 Shank Diameter Inch 34 Material Cobalt FinishCoating Bright Overall Length Inch 318 Center Cutting Yes Fine Pitch Roughers This general purpose rougher is designed for high production metal removal in a wide range of work piece material Suitable for a very broad spectrum of materials having high tensile strengths Milled surfaces are of exceptional quality Centre cutting Round profile Single end with weldon shank