The Lisle IPR Socket for Ford 6.0L with International Diesel, No. 68210, as been updated to accommodate removing and replacing the injector pressure regulator (IPR) on Ford 6.0L, International and other diesel engines. These regulators are located in a very tight location, and this tool is built to bottom out on the regulator hex so it does not put torque on the connector in case the regulator can be reused. The socket can be used with 3/8" square drive.