Handle Fuel Line with Ease: Orion Motor Tech's 6 piece diesel injector line socket set covers common socket sizes (12, 14, 16, 17, 18, & 19 mm) for effortless injector line removal and installation. User-Friendly Design for Easy Operation: The 12-point design of the diesel injector socket accommodates various nut and bolt shapes, while the extended length enables you to work on hard-to-reach areas.