This is the best socket i ever had. Well made. It fits on the tightest location of any oxygen sensor. No problem at all

Had to purchase this due to not having enough room to use the socket I had. The walls on the socket where to thick. This worked great and perfect to get in a tight spot

If you're trying to remove the upstream air/fuel ratio sensor from a Gen 2 Toyota Prius without removing the inverter then this is NOT particularly helpful. This does fit behind the heat shield on the sensor, however it's too long and in conjunction with a wrench or breaker bar it is nearly impossible to fit into the small slot available when the inverter is still in then engine bay. In the end I was able to get the part out, but it took me hours of trying to fit a huge crescent wrench around the end of it while slotted in a very small area. I think I was just super lucky that my air/fuel ratio sensor was not particularly tight and as I couldn't generate much force whatsoever.

Just what we needed for the Upstream sensor in the car!

This was perfect for my Air / Fuel sensor on my 2004 Toyota Highlander. It took me about 5 minutes to take out and install my new sensor.

This is a very nice tool that worked well on my Prius even though there is very little room.

Needed this for a Suzuki (thanks for a previous reviewer so specifically stating they used this on a Suzuki), as there was no room between the nut and the base for a regular adapter. Worked perfectly to replace my Bank 1 Sensor 1 O2 Sensor

Nice tool. Bought it to install new Bilstein B4 struts on my e46 BMW and the thin wall had just enough clearance for getting onto the larger 22mm nut Bilsteins use for holding the strut spring assembly together. Obviously, it also can work well on O2 sensors where there is limited space, like the 'rear' post cat O2 sensor and the two pre-cat O2 sensors on an e46 BMW

This socket worked removing the front shrouded oxygen sensor on a toyota prius.