Suitable for oxygen sensors found on most modern vehicles Cut-out and slots enable sockets to be fitted over wiring harness Includes 2 chasers for cleaning and repairing damaged threads All packed in a Convenient Storage Case Ideal for removing and installing oxygen sensors and vacuum switches on vehicles with computercontrolled engines 3 Different types of sockets cover various situations of oxygen sensor locations Universal 6point 78 22mm socket opening fits all hexagon oxygen sensor, common 38 and 12 drive ends can be used with ratchet or breaker bar Special side cutout design allows easy access to oxygen sensor from any section and prevents damage to wires Set includes 1pc 38 Dr. extra deep broach socket 318 long, 1pc 38 Dr. lowprofile crowfoot socket wrench 114 long, 1pc 12 Dr. offset crowfoot socket wrench 11516 long, 1pc M18 x 1.5mm and 1pc M12 x 1.25mm thread chasers with 38 drive to clean and repair damaged threads