2-Piece Spark Plug Gap Gauge Set

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Spark Plug Gap Gauges for Most Gap Sizes

This set includes two types of spark plug gap gauges. The 9-wire gauge covers most of the most common sizes of spark plug gaps, and features a built-in gap adjuster tool that can be used to correct the gap size to the right specification. The ramp gauge features a continuous scale that lets you take quick and easy measurements, and even features a hole that will let you keep it on your keychain. The wire gauge is made of durable steel with chrome plating to help prevent rust and corrosion, and SAE and metric sizes are stamped on both gauges, making it easy to get an accurate reading for your spark plug gap and adjust accordingly.


  • Includes: 1 pc. Wire gauge and 1 pc. Ramp gauge
  • Wire Gauge Sizes: 0.025, 0.030, 0.035, 0.040, 0.045, 0.050, 0.055 0.060, and 0.080 inches (0.64, 0.76, 0.89, 1.02, 1.14, 1.27, 1.40, 1.52, 2.03mm)
  • Ramp Gauge Scale: 0.02 to 0.1 inches (0.5mm to 2.5mm)
  • Wire gauge features durable steel construction
  • Wire gauge's chrome plated finish resists rust and corrosion
  • Both gauges stamped with metric and SAE size markings
  • Gauges measure and correct spark plug gaps
  • Ramp gauge features a hole that will let you keep it on your keychain
  • Wire gauge features built-in gap adjuster tool