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Spark Plug Ramp Gauge

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  • Quick easy method to set spark plug gap
  • Suits any size from 0.020 to 0.100 (0.6 - 2.4mm)
  • Hole in the gauge works as an electrode adjuster
  • Inch sizes stamped on the front
  • Metric sizes stamped on the back
  • Attaches to your key chain for easy access