Manufacturer Part Number: 77657|Drill Bit Size (Inch)|5/16Drill Bit Size (Wire)|Drill Bit Size (Letter)|Drill Bit Size (mm)|Drill Bit Size (Decimal Inch)|0.3125Drill Bit Material|Carbide TippedDrill Point Angle (Degrees)|118Coating/Finish|Flute Type|SpiralCutting Direction|Right HandPoint Type|StandardPrimary Workpiece Material|Cast Iron; Non-Ferrous MetalSpecification Number|Coolant Through|NoNumber of Flutes|2Drill Bit Finish/Coating|Bright/UncoatedFlute Length (Inch)|Primary Workpiece Material Code|Shank Diameter (Decimal Inch)|0.3125Overall Length (mm)|114.30Overall Length (Inch)|Overall Length (Decimal Inch)|4.5000Spiral Type|RegularFlute Length (mm)|80.96Flute Length (Decimal Inch)|3.1875Series|CTDTool Application|Flute By Diameter Ratio|Shank Diameter (Inch)|5/16Shank Diameter (mm)|7.94Maximum Drilling Depth (Decimal Inch)|Maximum Drilling Depth (mm)|Maximum Drilling Depth (Inch)|Shank Length (mm)|33.34Shank Length (Decimal Inch)|1.3126Shank Length (Inch)|Number of Flats|Drill Point Length (mm)|Drill Point Length (Decimal Inch)|Drill Bit Diameter Tolerance|+0.0000 to -0.0010 inWeb Thinning|Web-ThinnedWeb Configuration|TaperedShank Type|Straight-CylindricalTool Performance|General PurposeStandards|Double Margin|Drill Bit Grade|General PurposeDrill Bit Size Range (Decimal Inch)|0.3000 - 0.3500Drill Bit Size Range (mm)|Material Grade|Specification Designation|Product Service Code|UNSPSC Code|23241634