Manufacturer Part Number: 220-3125|Drill Bit Size (Inch)|5/16Drill Bit Size (Wire)|Drill Bit Size (Letter)|Drill Bit Size (mm)|7.94Drill Bit Size (Decimal Inch)|0.3125Drill Bit Material|Solid CarbideDrill Point Angle (Degrees)|118Coating/Finish|Flute Type|SpiralCutting Direction|Right HandPoint Type|Web-ThinnedPrimary Workpiece Material|Steel; Alloy Steel; Stainless Steel; Cast Iron; Aluminum; Aluminum Alloy; Aluminum SilicateSpecification Number|Coolant Through|NoNumber of Flutes|2Drill Bit Finish/Coating|Bright/UncoatedFlute Length (Inch)|2-3/8Primary Workpiece Material Code|P; M; K; NShank Diameter (Decimal Inch)|Overall Length (mm)|95.30Overall Length (Inch)|3-3/4Overall Length (Decimal Inch)|Spiral Type|RegularFlute Length (mm)|60.30Flute Length (Decimal Inch)|Series|220DTool Application|Blind Hole; Cross Hole; Drilling; Self-CenteringFlute By Diameter Ratio|Shank Diameter (Inch)|5/16Shank Diameter (mm)|7.94Maximum 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 to -0.013 mmWeb Thinning|Web-ThinnedWeb Configuration|TaperedShank Type|Straight-CylindricalTool Performance|General PurposeStandards|Double Margin|Drill Bit Grade|Drill Bit Size Range (Decimal Inch)|0.3000 - 0.3500Drill Bit Size Range (mm)|Material Grade|Specification Designation|Product Service Code|UNSPSC Code|23241634