Review on Enhance Performance Tool W84006: Advanced Oxygen Sensor Thread Chaser for Optimal Efficiency by Ben Walls

If you've removed the old sensor and need to install a new one, this socket comes in handy. That's the only reason it gets two stars instead of one. To remove the old O2 sensor, this thing is useless. The bushing simply slides around the bolt and trims the edges down. It claims to be the right size (7/8 inch) but doesn't hold on at all. After trying to use this thing for almost an hour, I simply cut the wires off the old sensor and used a regular 22mm deep wrap-around socket. Ten seconds later the job was done. Cutting the wires from the new sensor didn't work, of course, so this head came in handy. The site allows you to bypass the wires and fit the new sensor. If you think you're going to use this to remove a sensor that has been on your car for some time, you're in for a nasty surprise.