Hexagonal socket set for removal of the electrical solenoid from modern diesel injectors 1/2" sq dr. / 22mm hex 100mm length In most cases, it is necessary to remove the solenoid before attempting to remove the injector bodyIncludes 4 x sockets:- 25mm Hex Siemens Injectors - 2.0 Hdi (DW Series) As found on PSA, Ford, Toyota etc- 27mm Hex Siemens Piezo Injectors 2.0 Hdi Piezo (DW Series) As found on PSA etc- 29mm Hex Bosch type injectors Bosch Cdi / Hdi engines- 30mm Hex Bosch type injectors Bosch Renault / Nissan 1.9dCiSpare Parts:01512500 - 25mm Hex01512700 - 27mm Hex01512900 - 29mm Hex01513000 - 30mm Hex