General description Fuel Injector Line Sockets designed for Cummins diesel engines, these 2-piece sockets are also versatile for other fuel line and flare nut applications. Technical specifications Socket sizes: 19mm and 22mm Drive size: 3/8'' Maximum Torque: 30 ft-lb (40 Nm) Material: Chrome molybdenum with black phosphate finish Usage Used on HGV Cummins ISB engines (from 1998) Suitable for any 19mm or 22mm flare nut application