Item #: 18955047Brand: GWSModel #: 311503 Features and Benefits Solid carbide provides better rigidity than high speed steel. It is extremely heat resistant and used for high speed applications on cast iron, nonferrous materials, plastics and other tough-to-machine materials. Aluminum Chromium (AlCr) is a multi-layed coating with fine-grain carbide for high performance applications. It is extremely wear resistant in drilling cast iron due to high hot hardness at elevated speeds. Product Specifications Mill Diameter (mm) 7.94 Mill Diameter (Inch) 0.3125 Mill Diameter (Decimal Inch) 0.3125 End Type Corner Radius Corner Radius (Inch) 0.06 Corner Radius (Decimal Inch) 0.06 Number of Flutes 5 Material Solid Carbide Finish/Coating AlCr Length of Cut (mm) 20.6375 Length of Cut (Inch) 0.8125 Length of Cut (Decimal Inch) 0.8125 Shank Diameter (mm) 7.9375 Shank Diameter (Inch) 0.375 Overall Length (mm) 63.5000 Overall Length (Inch) 2.5 Flute Type Straight Cutting Direction Right Hand Helix Angle 38 Variable Index No Variable Helix No Material Grade Micrograin Single or Double End Single Length Type Standard Flute Direction Right Hand Extended Reach No Shank Type Standard Series/List 1040