Review on High-performance 3/8-inch Drive by 7/8-inch (22mm) Offset Oxygen Sensor Socket AP1822F: Chrome 🔧 Molybdenum Steel Construction with Wire Gate Access for Side Sensor Approach, Safeguarding Wire Integrity by Wesley Sharp

Don't start and then find you need it; or 3 down and "oh-oh-oh! There's no room for a wrench. This can be done from the bottom or from the top with a 3/8" extension. And it worked fine. I replaced four oxygen sensors on my rover. It took about an hour. I bought this to be ready. The day before I also used a penetrating lubricant, which I didn't need until the last one. He did his job and could have done more if needed. This is a reliable tool. For folks with a Land Rover Disco 2: it was handy on the driver's side upstream. Yes, at its height there was no room for a wrench. I'm glad I had it. You will too.