The CTA 7644U Tools BMW Fuel Injector w/ 24mm Wrench combines two essential components for efficient fuel injector service on a wide range of BMW engines. This set includes the 7644 BMW Fuel Injector Remover Tool Kit and the 6545 24mm Crows Foot Wrench, designed to fit fuel injector nuts on engines such as the N55, N20, N26, N63, B38, B48, and B58.