7Pcs Diesel Injector Cutter SetThis comprehensive tool set is suitable for a wide range of diesel vehicles, either commercial or occasional use. The whole set is designed to clean and decarbonise injector seats when changing injectors, avoiding blow back due to poorly seated injectors as well. The five various cutters contained are available for nearly all diesel cars. They can be used for re cutting injector seats when reconditioning diesel engines or replacing the injectors. And