APR AN Bolt Gauge | ANBG

Aero Products Research

Sale price $5.59 Regular price $6.95

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APR AN Bolt Gauge | ANBG

Pocket size stows easily in flight case or tool box!!

APR's Combination ANBG Bolt gauge conversion scales is a necesary tool for pilots, mechanics, aircraft owners, and anyone else who uses AN Bolt hardware. This pocket-size gauge is manufactured PVC Plastic.

The conversion scale list fractions is increments of 1/6" from 0 to 1 inch (64 entries). Along side each fraction are the decimal and millimeter equivalants. The bottom of the conversion scales shows the mathematical formulae for coverting millimeters to inches. Each side of the gauge has precision 8 inch and 20.5 centimeter rulers


  • Fractions to Decimals
  • Fractions to Millimeters
  • Decimals to Fractions
  • Decimals to Millimeter
  • Milimeters to Fractions
  • Millimeters to Decimals