Manufacturer Part Number: 51511|Drill Bit Size (Inch)|1/4Drill Bit Size (Wire)|Drill Bit Size (Letter)|EDrill Bit Size (mm)|6.35Drill Bit Size (Decimal Inch)|0.25Drill Bit Material|Solid CarbideDrill Point Angle (Degrees)|145Coating/Finish|Ti-NAMITE-AFlute Type|SpiralCutting Direction|Right HandPoint Type|StandardPrimary Workpiece Material|Temp Alloy; TitaniumSpecification Number|Coolant Through|NoNumber of Flutes|2Drill Bit Finish/Coating|AlTiNFlute Length (Inch)|2-5/64Primary Workpiece Material Code|Shank Diameter (Decimal Inch)|0.2500Overall Length (mm)|Overall Length (Inch)|3-5/8Overall Length (Decimal Inch)|3.6250Spiral Type|RegularFlute Length (mm)|Flute Length (Decimal Inch)|2.0781Series|135LTool Application|CenteringFlute By Diameter Ratio|5xDShank Diameter (Inch)|1/4Shank Diameter (mm)|Maximum Drilling Depth (Decimal Inch)|1.7969Maximum Drilling Depth (mm)|Maximum Drilling Depth (Inch)|1-51/64Shank Length (mm)|Shank Length (Decimal Inch)|1.4375Shank Length (Inch)|1-7/16Number of Flats|Drill Point Length (mm)|Drill Point Length (Decimal Inch)|Drill Bit Diameter Tolerance|+0.002 to +0.012 mmWeb Thinning|Web-ThinnedWeb Configuration|TaperedShank Type|Straight-CylindricalTool Performance|Standards|Double Margin|Drill Bit Grade|High PerformanceDrill Bit Size Range (Decimal Inch)|0.2500 - 0.3000Drill Bit Size Range (mm)|Material Grade|MicrograinSpecification Designation|Product Service Code|UNSPSC Code|23241634