General description Adjustable Spark Plug Ignition Tester is an essential engine repair tool designed to prevent ignition coil misfires and burnouts. It allows for quick and easy diagnosis of your car's fuel system, ensuring safe and reliable fault detection. This tool provides an intuitive understanding of ignition coil operation, making it practical and convenient for users. Technical specifications Material: High-quality alloy and plastic Durability: Rust-proof, wear-resistant, and aging-resistant Manufacturing: CNC machining and edge cutting for perfect dimensions Performance: Stable and high reliability Other information Designed for a longer service life Manufactured under unified factory standards with strict quality control