Manufacturer Part Number: 70827|Contact Point Style|RadiusPoint Material|Solid CarbideContact Point Length (Decimal Inch)|Contact Point Length (Inch)|Contact Point Length (mm)|38.10Diameter (mm)|5.16Ball Diameter (mm)|Ball Diameter (Inch)|Ball Diameter (Decimal Inch)|Overall Length (Decimal Inch)|1.5000Overall Length (mm)|38.00Overall Length (Inch)|1-1/2Thread Size|#4-48Point Angle|Industry Designation|For Use With|650 & 651 Back Plunger Dial Indicators; AGD Dial IndicatorsApplication|Features|Starrett Contact Points are Well DesignedDiameter (Inch, Fraction)|Point Identification|Diameter of Measurement (Decimal Inch)|Manufacturer's Part Number|Product Service Code|UNSPSC Code|