T1A Universal Oxygen O2 Sensor & Vacuum Switch Socket Wrench Set &ndash; 3 Piece Kit - HEAVY-DUTY Construction, Pro-Grade Durability COMPLETE TOOL SET: The TruBuilt 1 Automotive 3 Piece Universal Oxygen Sensor & Vacuum Switch Socket Wrench Set works to remove old, worn-out oxygen (O2) sensors and vacuum switches - all while keeping the harness connected. Makes removing and installing stubborn oxygen sensors simple and easy to do! 3 pc set includes a universal vacuum PVS. WHAT YOULL GET: The Trubuilt 1 Automotive 3 Piece Universal Oxygen O2 Sensor & Vacuum Switch Socket Wrench Set includes: (1) 7/8" (22mm) O2 socket, offset double hex crows foot, (1) 7/8" (22mm) O2 socket, low profile offset crows foot , (1) 7/8" (22mm) (6 point) slotted 3/8 drive O2/vacuum switch deep socket (3" long). UNIVERSAL FIT: 7/8 inch (22 millimeter) hex fits almost all oxygen sensors - 3/8" (2 sockets) and 1/2" (1 socket) drive for ratchets. Also can be used for other purposes. HEAVY-DUTY CONSTRUCTION: The Trubuilt 1 Automotive Oxygen O2 Sensor & Vacuum Switch Socket Wrench Set is used for removing and installing oxygen (O2) sensors and vacuum switches while keeping the harness connected. Count on the superior construction of T1A tools to withstand even your toughest jobs over time. Every set was heat treated and hardened black chrome vanadium steel. Made for professional mechanics, TESTED and APPROVED for durability. 100% SATISFACTION GUARANTEE: Every Trubuilt 1 Automotive tool is covered with a 12-month replacement warranty and a 30-day money back guarantee! Not satisfied? Return it for a full refund. TruBuilt to Last.