Product Details: Manufacturer Part Number: C21179|Drill Bit Size (Inch)|Drill Bit Size (mm)|17.50Shank Diameter (Decimal Inch)|0.5000Tool Material|High-Speed SteelDrill Point Angle|118Point Type|SplitShank Type|Weldon FlatFlute Length (Inch)|Flute Length (mm)|79.00Overall Length (Inch)|6Overall Length (mm)|Coating/Finish|CoatedSeries|1877MNumber Of Flats|3Drill Bit Size (Decimal Inch)|0.6890Shank Diameter (mm)|12.70Shank Diameter (Inch)|1/2Overall Length (Decimal Inch)|6.0000Flute Length (Decimal Inch)|3.1102Cutting Direction|Right HandFlute Type|SpiralSpiral Type|RegularNumber Of Flutes|2Web Thinning|Web Configuration|Drill Bit Diameter Tolerance|+0.0000 to -0.0012 inTool Performance|General PurposeTool Application|Drill Length Type|Reduced ShankMaximum Drilling Depth (Inch)|Maximum Drilling Depth (Decimal Inch)|3.1102Maximum Drilling Depth (mm)|79.00Flute Length x Diamter Ratio|Shank Length (Inch)|Shank Length (Decimal Inch)|2.8740Shank Length (mm)|Primary Workpiece Material|Cast Iron; SteelPrimary Workpiece Material Code|K; PSecondary Workpiece Material|Secondary Workpiece Material Code|Coolant|NoStandards|Psc Code|UNSPSC Code|23241635