Review on TEKTON 3/8 Inch Drive x 7/8 Inch Offset Oxygen Sensor Socket - 6-Point, Model 47749 by Nathan Skipper

This works fine as long as your O2 sensor isn't rusted or frozen on. Heat might help, or replacing that part of the exhaust might be the way to deal with really rusted gauges. I've heard people abandon the old stuck sensor and weld a new place for it. (Drill a new hole and weld on the other car's threaded part. This tool crawled all over me and was about to slip. Although I'm not entirely sure it's fair to blame the tool. It does have one Wire gap and is tends to spread to very high torque because of this. I have other O2 sensor connections and none of them will work. End up and use a regular percussion head and a large percussion gun. Spray WD40 or PB Blaster and maybe try to freeze it with a can (MAP gas is hotter than propane but maybe still not hot enough) I ended up freezing mine with a Knipex pliers wrench with a tube on a handle and a very hot torch my friend has, This is a Minnesota truck in a rusty belt that's been driving all his life and he's almost 20 years old.