Manufacturer Part Number: 6151031|Drill Bit Size (Inch)|1/4Drill Bit Size (Wire)|Drill Bit Size (Letter)|Drill Bit Size (mm)|Overall Length (Inch)|Overall Length (mm)|158.00Tool Material|Solid CarbideCoating/Finish|TiAlNCoolant Through|YesFlute Type|SpiralShank Type|Straight-CylindricalDrill Point Angle|140Flute Length (Inch)|Flute Length (mm)|116.00Point Type|StandardSeries|861.1Cutting Direction|Right HandTool Application|DrillingSpiral Type|RegularDrill Bit Diameter Tolerance|0.000 to -0.001 in; -0.012 to 0.000 mmNumber Of Flutes|2Web Thinning|Web Configuration|Primary Workpiece Material|SteelPrimary Workpiece Material Code|PSecondary Workpiece Material|Stainless SteelSecondary Workpiece Material Code|MStandards|COROMANTDrill Bit Grade|High PerformanceDrill Bit Size (Decimal Inch)|0.2500Drill Point Length (mm)|1.00Drill Point Length (Decimal Inch)|0.0394Overall Length (Decimal Inch)|Shank Diameter (Decimal Inch)|0.3150Shank Diameter (mm)|8.00Shank Diameter (Inch)|Shank Length (Decimal Inch)|1.4173Shank Length (mm)|36.00Flute Length (Decimal Inch)|4.5669Flute By Diameter Ratio|12xDMaximum Drilling Depth (Decimal Inch)|3.0397Maximum Drilling Depth (mm)|77.51Material Grade|GC34Specification Designation|ISOSpecification Number|861.1-0635-076A1-GM GC34Psc Code|UNSPSC Code|23291500