CTA Tools 3235 Spark Plug Gapper: Coin-Style Spark Plug Gap Tool, 0.020"–0.100" Measurement Range, Plated Steel, Quick-Check Reference Tool

About this product

The CTA Tools 3235 Spark Plug Gapper is a compact, coin-style tool designed for quick and convenient spark plug gap checks during routine maintenance and tune-ups. With an easy-to-read scale and simple ramp-style design, it allows users to quickly verify spark plug gaps without complicated setup or additional tools. This gapper measures gap sizes from 0.020" to 0.100", covering most automotive, powersports, and small-engine applications. Constructed from durable, corrosion-resistant plated steel, it is built to withstand repeated use while maintaining reliable performance over time. Its slim, lightweight design fits easily in a pocket or toolbox, making it ideal for use in the shop, garage, or on the go. The CTA Tools 3235 is intended for general service and quick-reference use, helping ensure proper ignition performance and smoother engine operation during everyday maintenance. It provides approximate gap verification within normal service tolerances and is well-suited for fast inspections and adjustments. Important Usage Note: This spark plug gapper is a quick-check reference tool and is not designed for calibration-grade precision. Minor measurement variances are normal and acceptable for general service. For applications requiring exact gap measurements to the thousandth of an inch (such as 0.028" or 0.71 mm), a precision feeler gauge should be used for final verification. Whether you’re performing routine maintenance, diagnosing ignition issues, or making quick checks between runs, the CTA Tools 3235 Spark Plug Gapper delivers reliable, fast, and convenient results you can count on.