
The medium could not be loaded. Over the years I've always wondered how well these universal sockets work. Now I know they work great. My socket set is missing some sockets, usually the ones I need. With this universal socket, I no longer have to search for the right socket size. This universal socket fits bolts and nuts from 1/4" to 3/4" and metric sizes from 7mm to 19mm. There is also a universal head that fits large nuts and bolts. I tried this wrench on a couple of bolts, one on my truck and one on my garage door. It worked well for both. The practical thing is that you don't have to search for a socket of the right size. It's really hard work, and the "pins" are very strong. This head did not slip on the screw heads at all. You have to use a little force when using it, but it's minimal and I can tighten the screws very tightly. This universal socket works well.