Portable and easy to use: compact, lightweight spark plug gap tool fits in a pocket or on a keychain so you can check and set gaps anywhere—garage, track, or job site—without bulky tools. Precise gap measurement: die-cast construction with clear engraved graduations and an easy-to-read scale lets you verify spark plug gaps quickly and accurately. Durable alloy steel build: made from high-quality solid alloy steel for long service life; resists damage and deformation under normal use. Rugged and flexible: heavy-duty construction provides strength and elasticity so the tool withstands repeated use while maintaining its shape and accuracy. Practical for multiple applications: use it for ignition spark plugs on cars, motorcycles, lawn mowers, generators and other small engines to ensure proper engine performance and fuel efficiency. Simple operation: slide the gauge against the electrode to read the gap and use the tool to adjust as needed—no extra equipment required. What it solves: prevents misfires and poor engine performance caused by incorrect spark plug gaps by giving you a reliable, on-the-spot way to measure and correct gaps. Size and compatibility: small form factor designed for standard spark plug gap measurement and adjustment; a convenient companion for DIY mechanics, professional technicians, and hobbyists.