Spark Plug Gap Gauge Coin Tool 0.02–0.10 in

✅ Set the gap before fitting. The tapered edge and etched markings give a reference from 0.02 to 0.10 inches.

✅ Fits a tune-up kit. At about 37.5 mm across and 3 mm thick, it stores with your plug tools.

✅ Check against the spec. Follow the plug manufacturer's guidance before adjusting an electrode.

Check the plug gap before it goes in

A metal coin-style gauge with a tapered edge and etched markings from 0.02 to 0.10 inches, about 37.5 mm across and 3 mm thick. It is for checking a spark plug gap against your engine's specification before the plug goes in.

Technical details

• Metal coin-style spark plug gap gauge
• Listed range 0.02-0.10 in
• About 37.5 mm across and 3 mm thick

Check the specified gap for your engine, then add the gauge to your tune-up tools.