Review on GearWrench 81273 Drive Locking Extension by Bohyun Hansen

This extension is typical of high quality Gearwrench tools. It works well. The sockets are held firmly, there is no risk of loss. Long enough to get almost anywhere. I used it to replace an O2 sensor that was previously out of reach. So if you need a good, reliable, long 3/8" extension, you can buy this tool.