Manufacturer Part Number: BS0900031|Drill Bit Size (Inch)|31/64Drill Bit Size (Wire)|Drill Bit Size (Letter)|Drill Bit Size (mm)|Drill Bit Size (Decimal Inch)|0.4844Tool Material|High Speed SteelCutting Direction|Left HandCoating/Finish|Bright/UncoatedNumber Of Flutes|Spiral Type|RegularFlute Type|SpiralDrill Point Angle|118Coolant Through|NoShank Type|Straight-CylindricalShank Diameter (Decimal Inch)|Drill Tip Finish/Coating|Overall Length (mm)|Overall Length (Decimal Inch)|Overall Length (Inch)|3-11/16Shank Diameter (mm)|Series|Point Type|StandardWeb Thinning|Web-ThinnedWeb Configuration|ParallelNumber of Margins|Drill Length Type|Maximum Drilling Depth (Decimal Inch)|Maximum Drilling Depth (mm)|Shank Length (Inch)|Shank Length (Decimal Inch)|Shank Length (mm)|Drill Point Length (mm)|Drill Point Length (Decimal Inch)|Flute By Diameter Ratio|Tool Performance|Drill Bit Diameter Tolerance|Standards|Flute Length (Decimal Inch)|Flute Length (Inch)|2-3/16Flute Length (mm)|Drill Bit Grade|General PurposeDrill Bit Size Range (Decimal Inch)|0.4500 to 0.5000Drill Bit Size Range (mm)|Specification Number|Specification Designation|Material Grade|Product Service Code|UNSPSC Code|