Manufacturer Part Number: 771684|Collet System|ERCollet Series|ER20Shank Type|Dual Contact TaperTaper Size|CAT50Modular Connection Size|Projection (Decimal Inch)|4.0000Projection (mm)|Projection (Inch)|4Through Coolant|YesMinimum Collet Capacity (mm)|Minimum Collet Capacity (Inch)|25/64Minimum Collet Capacity (Decimal Inch)|0.0390Maximum Collet Capacity (Inch)|Maximum Collet Capacity (mm)|12.97Maximum Collet Capacity (Decimal Inch)|0.5110Overall Length (mm)|Overall Length (Inch)|8Overall Length (Decimal Inch)|8.0000Actuator Type|Dual Contact|Nose Diameter (Inch)|Nose Diameter (Decimal Inch - 4 Decimals)|1.3800Nose Diameter (Mm) ( - 2 Decimals)|Maximum RPM|25000Shank Diameter (Inch)|Shank Diameter (Decimal Inch)|Shank Diameter (mm)|Shank Length (Inch)|4Shank Length (Decimal Inch)|4.00Shank Length (mm)|TIR (mm)|0.0070TIR (mum)|TIR (Decimal Inch)|0.000300Material|Coolant Type|Through-Spindle & DIN FlangeCollet Nut Diameter (mm)|Collet Nut Diameter (Decimal Inch)|1.3800Nut Tightening Torque (Ft/Lb)|Nose Type|Type|ER ColletHead Length (Inch)|Hex Diameter (Decimal Inch)|Hex Diameter (Inch)|1-3/8Hex Diameter (mm)|Additional Information|Locknut Diameter (Decimal Inch)|Bin|C|F|No Description|No Description|No Description|No Description|No Description|No Description|No description|No Description|Flat Dimension (Inch)|Hex Shank Size (Decimal Inch)|Product Service Code|5136Manufacturer's Part Number|UNSPSC Code|Head Length (Decimal Inch)|Lock Nut Length (Decimal Inch)|Flat Dimension (Decimal Inch)|Chuck Model|Inside Modular Connection Size|Tapping Style|Balanced To Rpm|25000Hex Size (Inch)|Quick Change|For Use With|Thread Size (Inch)|Adapter Size|Thread Size (mm)|