Our five-piece disassembly and installation tools are specially designed for users to solve the problem of disassembly and assembly of oxygen sensors. The special side cut design can protect the wires well. The size of our tool kit has been accurately measured and is suitable for most modern vehicles. Using professional tools, you can save your time and money, and you can also protect your vehicle from damage. 3 Sockets: 1pc Oxygen Sensor Socket 1/2" Drive x 7/8" (22mm) x 50mm long 1pc Vacuum Switch Socket 3/8" Drive x 7/8" (22mm) x 30mm long 1pc Vacuum Switch Socket 3/8" Drive x 7/8" (22mm) x 6pt x 80mm long 2 Thread Chasers: 1pc M12 x 1.25mm 1pc M18 x 1.5mm