Manufacturer Part Number: HP255-3906|Drill Bit Size (Inch)|25/64Drill Bit Size (Wire)|Drill Bit Size (Letter)|Drill Bit Size (mm)|9.92Drill Bit Size (Decimal Inch)|0.3906Drill Bit Material|Solid CarbideDrill Point Angle (Degrees)|140Coating/Finish|WD1Flute Type|SpiralCutting Direction|Right HandPoint Type|R-ThinnedPrimary Workpiece Material|Steel; Alloy Steel; Cast IronSpecification Number|Coolant Through|YesNumber of Flutes|2Drill Bit Finish/Coating|Flute Length (Inch)|Primary Workpiece Material Code|P; KShank Diameter (Decimal Inch)|Overall Length (mm)|103.00Overall Length (Inch)|Overall Length (Decimal Inch)|Spiral Type|RegularFlute Length (mm)|61.00Flute Length (Decimal Inch)|Series|HP255Tool Application|Blind Hole; Cross Hole; Drilling; Self-CenteringFlute By Diameter Ratio|5xDShank Diameter (Inch)|Shank Diameter (mm)|10.00Maximum Drilling Depth (Decimal Inch)|Maximum Drilling Depth (mm)|Maximum Drilling Depth (Inch)|Shank Length (mm)|Shank Length (Decimal Inch)|Shank Length (Inch)|Number of Flats|Drill Point Length (mm)|Drill Point Length (Decimal Inch)|Drill Bit Diameter Tolerance|+0.006 to +0.021 mmWeb Thinning|R-ThinnedWeb Configuration|TaperedShank Type|Straight-CylindricalTool Performance|High PerformanceStandards|Double Margin|Drill Bit Grade|Drill Bit Size Range (Decimal Inch)|0.3500 - 0.4000Drill Bit Size Range (mm)|Material Grade|Specification Designation|Product Service Code|UNSPSC Code|23241634