Powerbuilt 648442 Oxygen Sensor Sockets
For removing and installing oxygen sensor and vacuum switches. Specially designed 7/8 inch (22 millimeter) socket features slot for wiring connector pigtail or vacuum nipples. 2-1/2 inch depth to fit over long sensors. Can be used with 1/2 inch drive ratchet or 7/8 inch end wrench on the external hex. Also fits thermal vacuum valves, etc. Chrome vanadium steel for strength. Lifetime warranty.