1、This is a professional set suitable for oxygen & vacuum sensors. 2、Cut-outs and slots enable sockets to be fitted over wiring harness. 3、Includes two thread chasers for cleaning and repairing damaged. 4、A 5pcs oxygen sensor / injector removal socket set, completely meet your needs. 5、Designed for removal, inspection or replacement of oxygen sensors / injectors. Condition: 100% Brand New Item Type: Oxygen Sensor Socket Material: Chrome-Vanadium Steel, Chrome-Molybdenum SteelThe surface of chrome vanadium steel is finely polished and electroplated to prevent corrosion and rust. The surface of chromium-molybdenum steel is blackening, resistant to oil, corrosion and rust. Application: found on most modern vehicles. Suitable for commercial or home use. 1 x Heated Oxygen Sensor Socket 1/2" DR. x 7/8" (22mm) x 50mm long 1 x Vacuum Switch Socket 3/8" DR. x 7/8" (22mm) x 31mm long 1 x Vacuum Switch Socket 3/8" DR. x 7/8" (22mm) x 6PT x 80mm long 1 x Thread Chasers 1: M12 x 1.25mm 1 x Thread Chasers 2: M18 x 1.5mm