Manufacturer Part Number: 50709|Accessory Type|Indicator SnugFor Use With|252 Height Transfer Gages; 257A & 257B Surface Gages; 57A & 57B Surface Gages; 650,651,196 & 196M Back Plunger & Universal Dial Indicators; 657A Magnetic BaseHole Diameter (Mm) ( - 0 Decimals)|Hole Diameter (Decimal Inch)|0.3125Shank Length (Inch)|Shank Length (mm)|Overall Length (Decimal Inch)|Overall Length (Inch)|Overall Length (mm)|Calibrated|Traceability Certification Included|Indicator|UNSPSC Code|41111600