Wide Range of Uses: Adjustable ignition coil tester to prevent ignition coil misfires, ignition coil burnouts, etc. Quick Detection: Quickly and easily diagnose whether your car's fuel system is working properly, providing a safe and reliable fault diagnosis method that's practical, convenient, and fast, and providing an intuitive and hands-on understanding of ignition coil operation. High-Quality Materials: Made of high-quality alloy and plastic, high hardness, sturdy, durable, rust-proof, wear-resistant, aging-resistant, easy to use, and not easily deformed. It has a longer service life. Professional Manufacturing: Stable performance and high reliability. Unified factory standards, high-quality molds, professional manufacturing, CNC machining and edge cutting, perfect dimensions, and every part is strictly controlled.