Manufacturer Part Number: C73449|Drill Bit Size (Inch)|Drill Bit Size (Wire)|#21Drill Bit Size (Letter)|Drill Bit Size (mm)|Drill Bit Size (Decimal Inch)|0.1590Drill Bit Material|High Speed SteelDrill Point Angle (Degrees)|118Coating/Finish|Flute Type|SpiralCutting Direction|Right HandPoint Type|SplitPrimary Workpiece Material|AluminumSpecification Number|NAS 907Coolant Through|NoNumber of Flutes|2Drill Bit Finish/Coating|Bright/UncoatedFlute Length (Inch)|2-1/8Primary Workpiece Material Code|Shank Diameter (Decimal Inch)|0.1590Overall Length (mm)|82.55Overall Length (Inch)|3-1/4Overall Length (Decimal Inch)|3.2500Spiral Type|RegularFlute Length (mm)|Flute Length (Decimal Inch)|Series|2228Tool Application|Flute By Diameter Ratio|Shank Diameter (Inch)|Shank Diameter (mm)|Maximum Drilling Depth (Decimal Inch)|Maximum Drilling Depth (mm)|Maximum Drilling Depth (Inch)|Shank Length (mm)|28.57Shank Length (Decimal Inch)|1.1250Shank Length (Inch)|Number of Flats|Drill Point Length (mm)|Drill Point Length (Decimal Inch)|Drill Bit Diameter Tolerance|-0.0007 to 0.0000 inWeb Thinning|Web-ThinnedWeb Configuration|TaperedShank Type|Straight-CylindricalTool Performance|Standards|NAS 907 Type ADouble Margin|Drill Bit Grade|Heavy DutyDrill Bit Size Range (Decimal Inch)|0.1500 - 0.2000Drill Bit Size Range (mm)|Material Grade|Specification Designation|NASProduct Service Code|UNSPSC Code|23241634