Manufacturer Part Number: C18442|Drill Bit Size (Inch)|1/4Drill Bit Size (Wire)|Drill Bit Size (Letter)|EDrill Bit Size (mm)|Drill Bit Size (Decimal Inch)|0.2500Drill Bit Material|High Speed SteelDrill Point Angle (Degrees)|135Coating/Finish|Oxide; TiNFlute Type|ParabolicCutting Direction|Right HandPoint Type|SplitPrimary Workpiece Material|AluminumSpecification Number|Coolant Through|NoNumber of Flutes|2Drill Bit Finish/Coating|Flute Length (Inch)|2-3/4Primary Workpiece Material Code|K; N; PShank Diameter (Decimal Inch)|0.2500Overall Length (mm)|101.60Overall Length (Inch)|4Overall Length (Decimal Inch)|4.0000Spiral Type|Flute Length (mm)|69.85Flute Length (Decimal Inch)|2.7500Series|1872Tool Application|Flute By Diameter Ratio|Shank Diameter (Inch)|1/4Shank Diameter (mm)|6.35Maximum Drilling Depth (Decimal Inch)|Maximum Drilling Depth (mm)|Maximum Drilling Depth (Inch)|Shank Length (mm)|31.75Shank Length (Decimal Inch)|1.2500Shank 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|Standards|ASME B94.11M; DIN 338Double Margin|Drill Bit Grade|Heavy DutyDrill Bit Size Range (Decimal Inch)|0.2500 - 0.3000Drill Bit Size Range (mm)|Material Grade|Specification Designation|Product Service Code|UNSPSC Code|23241634