Supercrazy Heat Oxygen Sensor Socket Tool 7/8"(22mm) SF0125 Applicable models:FORD, TOYOTA, NISSAN, BENZ, BMW and most of the euro cars Put a slot in the side of this wrench to accommodate connectors on heated oxygen sensors, which usually won't fit in standard sensors wrenches. The extended and reinforced body removes the most stubborn sensors without rounding them off. Features 1/2 of the double square drive, 7/8"(22mm) hex. Flare nut for vacuum switch & oxygen sensor service on the computer-controlled engines.