Manufacturer Part Number: 9012430079400|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|Solid CarbideDrill Point Angle (Degrees)|140Coating/Finish|Flute Type|SpiralCutting Direction|Right HandPoint Type|SUPrimary Workpiece Material|Cast Iron; SteelSpecification Number|Coolant Through|NoNumber of Flutes|2Drill Bit Finish/Coating|Titanium NitrideFlute Length (Inch)|Primary Workpiece Material Code|K; PShank Diameter (Decimal Inch)|Overall Length (mm)|90.00Overall Length (Inch)|Overall Length (Decimal Inch)|Spiral Type|RegularFlute Length (mm)|48.00Flute Length (Decimal Inch)|Series|1243Tool Application|Self-CenteringFlute By Diameter Ratio|5xDShank Diameter (Inch)|5/16Shank Diameter (mm)|Maximum Drilling Depth (Decimal Inch)|1.4200Maximum Drilling Depth (mm)|36.09Maximum Drilling Depth (Inch)|Shank Length (mm)|42.00Shank Length (Decimal Inch)|Shank Length (Inch)|Number of Flats|Drill Point Length (mm)|Drill Point Length (Decimal Inch)|Drill Bit Diameter Tolerance|0.006 to 0.021 mmWeb Thinning|Web-ThinnedWeb Configuration|TaperedShank Type|Straight-CylindricalTool Performance|Standards|Double Margin|Drill Bit Grade|High PerformanceDrill Bit Size Range (Decimal Inch)|0.3000 - 0.3500Drill Bit Size Range (mm)|Material Grade|SubmicronSpecification Designation|Product Service Code|UNSPSC Code|23241634