Manufacturer Part Number: A63.140.5/16Z.4|Shank Type|TaperShank Diameter (Decimal Inch)|Shank Diameter (mm)|Shank Diameter (Inch)|Modular Connection Size|Taper Size|HSK63AOverall Length (mm)|80.01Overall Length (Decimal Inch)|3.1500Hole Diameter|0.3125Hole Diameter (Mm) ( - 0 Decimals)|7.94Hole Diameter (Inch)|5/16Projection (Decimal Inch)|3.1500Projection (mm)|80.01Through Coolant|YesClamping Depth (Decimal Inch)|1.4200Clamping Depth (mm)|36.07Nose Diameter (Mm) ( - 2 Decimals)|21.08Nose Diameter (Decimal Inch - 4 Decimals)|0.8300TIR (Decimal Inch)|TIR (mm)|Includes|Series|Additional Information|With Cool Jet & Resealable BoresCutting Direction|Coating/Finish|Balanced To Rpm|25000Extended Reach|Product Service Code|UNSPSC Code|27112809