Spark Plug Gap Gauge

Spark plug gap gauge with easy to read markings and tapered hole adjusts electrode. The gauge features easy-to-read markings that allow you to quickly and accurately check the gap on your spark plugs. This gauge provides both SAE (.02 to .100) and metric (.5 to 2.5mm) sizing options, making it versatile and useful for a variety of vehicles. Keeping your spark plugs properly gapped is essential for maintaining engine performance, and this gauge makes it easy to do so.