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Upavon IFFA Rules Competition Fly & Hook Gauge


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The most accurate international rules fly gauge on the market.*Made in the UK from corrosion resistant 2mm aluminium sheet.**

  • Small and lightweight with machined zinger hole.
  • Rules: "Hooks may not measure more than five-eighths of an inch overall, including the eye. The overall length of the fly may not exceed fifteen-sixteenths of an inch."
  • 5/8" = 15.9mm1
  • 5/16" = 23.8mm

*All measurements within 0.1mm of stated dimensions.

**Gauges may have residual burn marks from the laser cutting process, all gauges are washed in an acid bath and cleaned before packing.