Manufacturer Part Number: A63.144.1/2Z.4|Shank Type|TaperShank Diameter (Decimal Inch)|Shank Diameter (mm)|Shank Diameter (Inch)|Modular Connection Size|Taper Size|HSK63AOverall Length (mm)|130.05Overall Length (Decimal Inch)|5.1200Hole Diameter|0.5000Hole Diameter (Mm) ( - 0 Decimals)|12.70Hole Diameter (Inch)|1/2Projection (Decimal Inch)|5.1200Projection (mm)|130.05Through Coolant|YesClamping Depth (Decimal Inch)|1.8500Clamping Depth (mm)|46.99Nose Diameter (Mm) ( - 2 Decimals)|23.88Nose Diameter (Decimal Inch - 4 Decimals)|0.9400TIR (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