NST-1025 Heated Oxygen Sensor Socket NST-1025 Heated Oxygen Sensor Socket The extended and reinforced reinforced body removes the most stubborn sensors without rounding them off Features:1/2 of the double square drive, 7/8inch (22mm) hex Flare nut for vacuum switch & oxygen sensor service on the computer-controlled engines Application:Ford, Toyota, Nissan, Benz, BMW, most of the European cars