3 Pc. Diesel injector fuel line socket wrenches are designed for removing injector lines on most diesel engines. 12 point sockets for maximum grip includes a 14mm, 17mm and 19mm sizes. Works great on most Mercedes-Benz & Sprinters. Comes in a blow molded case for easy storage and transportation. They are manufactured from chrome vanadium steel for strength and durability. Whether tuning up your '68 Corvette or changing the oil on a John Deere tractor, CTA can supply you with the tools needed to do the job. California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.