●Injector Socket 28mm x 1/2" Drive 12point: for use with Scania Volvo Used to remove diesel oxygen sensors. ●Injector Socket 7/8" x 1/2" Drive 12 point: for use with Nissan, VW Used to remove diesel oxygen sensors. ●Long-Reach Vacuum Switch Socket 7/8" x 1/2" Drive 6 point: for use with Audi, BMW Chrysler, Ford, Mercedes, Rover, Seat, Volvo, VW Used to remove vacuum switches.