Manufacturer Part Number: 21-262-1|Contact Point Style|RollerPoint Material|SteelContact Point Length (Decimal Inch)|0.5000Contact Point Length (Inch)|1/2Contact Point Length (mm)|Diameter (mm)|Ball Diameter (mm)|Ball Diameter (Inch)|Ball Diameter (Decimal Inch)|Overall Length (Decimal Inch)|Overall Length (mm)|Overall Length (Inch)|Thread Size|#4-48Point Angle|Industry Designation|AGD Group 1For Use With|Dial IndicatorsApplication|Features|Absolute Encoder Ensures All Settings; Function Lock; Switchable Resolutions on Models Noted BelowDiameter (Inch, Fraction)|3/8Point Identification|Diameter of Measurement (Decimal Inch)|Manufacturer's Part Number|Product Service Code|UNSPSC Code|