Manufacturer Part Number: C20485|Drill Bit Size (Inch)|5/16Drill Bit Size (Wire)|Drill Bit Size (Letter)|Drill Bit Size (mm)|Overall Length (Inch)|18Overall Length (mm)|Tool Material|High-Speed SteelCoating/Finish|OxideCoolant Through|NoFlute Type|SpiralShank Type|Straight-CylindricalDrill Point Angle|118Flute Length (Inch)|14Flute Length (mm)|355.60Point Type|NotchedSeries|1807Cutting Direction|Right HandTool Application|Spiral Type|RegularDrill Bit Diameter Tolerance|+0.0000 to -0.0010 inNumber Of Flutes|2Web Thinning|Web-ThinnedWeb Configuration|TaperedPrimary Workpiece Material|Cast Iron; SteelPrimary Workpiece Material Code|K; PSecondary Workpiece Material|Secondary Workpiece Material Code|Standards|ASME B94.11M; California PROP 65Drill Bit Grade|General PurposeDrill Bit Size (Decimal Inch)|0.3125Drill Point Length (mm)|Drill Point Length (Decimal Inch)|Overall Length (Decimal Inch)|18.0000Shank Diameter (Decimal Inch)|0.3125Shank Diameter (mm)|7.94Shank Diameter (Inch)|5/16Shank Length (Decimal Inch)|4.0000Shank Length (mm)|101.60Flute Length (Decimal Inch)|14.0000Flute By Diameter Ratio|Maximum Drilling Depth (Decimal Inch)|Maximum Drilling Depth (mm)|Material Grade|Specification Designation|Specification Number|Psc Code|UNSPSC Code|