3/8" x 7/8" Drive Oxygen Sensor Socket

I just replaced the O2 sensor in my 2000 Hyundai Accent - there is no way I could have done it without this. Even after soaking it in penetrating oil, heat cycling it, etc - I still had to use this on the end of an impact gun. It got it out quick - but word to the wise - I had to use a thread chaser to clean up the threads due to the amount of force it took. This little socket is INVALUABLE for changing your older O2 Sensor.