Suitable for Impact Use. Suitable for oxygen sensors found on most modern vehicles. Cut out and slots enable sockets to be fitted over wiring harnesses (enabling fast and efficient work)/ For removal, inspection or replacement of heated and non heated oxygen sensors fitted to the majority of vehicles. Most popular vehicles that they fit include Audi / BMW / Mercedes / Peugeot / Renault / Skoda / Vauxhall / Opel / GM / Volkswagen Suitable for Titania and Zirconia oxygen sensors found on almost all modern vehicles. Comes with 2 x thread chasers for cleaning and repairing damaged threads. Includes; Heat treated oxygen sensor socket 1/2" drive x 7/8" (22mm) x 50mm long Vacuum switch socket 3/8" drive x 7/8" (22mm) x 31mm long Vacuum switch socket 3/8" drive x 7/8" (22mm) x 6pt x 80mm long Thread chaser M12 x 1.25mm Thread chaser M18 x 1.5mm Supplied in a blow molded case for easy storage and transportation. Professional tool for commercial or occasional use.