Kuntech 3/8" 1/2" Diesel Injector Fuel Line Socket Wrench Set 10-22mm for Thermo Switches, Fastener on Bent Pipes, EGT Sensor, etc. This versatile combination set of strut nut sockets and diesel injector line sockets works perfectly for a wide range of components: injector lines, fuel fittings, fuel injector connections, bent pipes, EGT sensors, thermal switches, and related fasteners.