Product Details: Manufacturer Part Number: DWA1220|Drill Bit Size (Inch)|5/16Drill Bit Size (Wire)|Drill Bit Size (Letter)|Drill Bit Size (mm)|Drill Bit Size (Decimal Inch)|Drill Bit Material|CobaltDrill Point Angle (Degrees)|140Coating/Finish|Multi-layerFlute Type|Regular SpiralCutting Direction|Right HandPoint Type|PilotPrimary Workpiece Material|Specification Number|Coolant Through|NoNumber of Flutes|Drill Bit Finish/Coating|Flute Length (Inch)|Primary Workpiece Material Code|Shank Diameter (Decimal Inch)|0.3125Overall Length (mm)|117.08Overall Length (Inch)|4-39/64Overall Length (Decimal Inch)|4.6094Spiral Type|RegularFlute Length (mm)|Flute Length (Decimal Inch)|Series|Tool Application|Flute By Diameter Ratio|Shank Diameter (Inch)|5/16Shank Diameter (mm)|7.94Maximum Drilling Depth (Decimal Inch)|2.6094Maximum Drilling Depth (mm)|66.28Maximum Drilling Depth (Inch)|2Shank Length (mm)|Shank Length (Decimal Inch)|Shank Length (Inch)|Number of Flats|Drill Point Length (mm)|Drill Point Length (Decimal Inch)|Drill Bit Diameter Tolerance|Web Thinning|Web Configuration|Shank Type|StraightTool Performance|Standards|Double Margin|Drill Bit Grade|Drill Bit Size Range (Decimal Inch)|Drill Bit Size Range (mm)|Material Grade|Specification Designation|Product Service Code|UNSPSC Code|23241634