Manufacturer Part Number: C18074|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)|135Coating/Finish|Flute Type|SpiralCutting Direction|Right HandPoint Type|SplitPrimary Workpiece Material|Cast Iron; SteelSpecification Number|Coolant Through|NoNumber of Flutes|2Drill Bit Finish/Coating|Gold; OxideFlute Length (Inch)|2-1/8Primary Workpiece Material Code|K; PShank Diameter (Decimal Inch)|0.1590Overall Length (mm)|82.55Overall Length (Inch)|3-1/4Overall Length (Decimal Inch)|3.2500Spiral Type|RegularFlute Length (mm)|53.98Flute Length (Decimal Inch)|2.1250Series|1878Tool Application|Flute By Diameter Ratio|Shank Diameter (Inch)|Shank Diameter (mm)|4.04Maximum Drilling Depth (Decimal Inch)|Maximum Drilling Depth (mm)|Maximum Drilling Depth (Inch)|Shank Length (mm)|28.58Shank Length (Decimal Inch)|1.1252Shank Length (Inch)|Number of Flats|Drill Point Length (mm)|Drill Point Length (Decimal Inch)|Drill Bit Diameter Tolerance|+0.0000 to -0.0007 inWeb Thinning|Web-ThinnedWeb Configuration|TaperedShank Type|Straight-CylindricalTool Performance|High PerformanceStandards|ASME B94.11M; DIN 338Double Margin|Drill Bit Grade|Heavy DutyDrill Bit Size Range (Decimal Inch)|0.1500 - 0.2000Drill Bit Size Range (mm)|Material Grade|Specification Designation|Product Service Code|UNSPSC Code|23241634