OPTIMIZE YOUR INSTALLATION PROCESS Introducing the HPI Racing Clutch Shoe Spring Tool (HPI106187), an essential addition for enthusiasts of Radio Controlled Vehicles, simplifying the installation procedure for clutch shoes. EASY TO USE This tool allows for effortless operation; simply slide it over the output shaft and rotate clockwise for a seamless installation. COMPATIBLE WITH MULTIPLE ENGINES Engineered to work not only with all HPI nitro engines but also with various other brands, ensuring versatility in your toolkit. A MUST-HAVE FOR EVERY PIT BOX Considered an invaluable accessory, this tool enhances your setup, making it a great addition to any pit box for serious hobbyists. Enhance your radio control experience with a tool designed for precision and efficiency, making every installation straightforward and enjoyable.