These are NOT thin-walled sockets. They are not suitable for wheels that require thin wall bushings. They are just as wide, if not wider, than a regular outlet (photo attached). The sockets and the little case they come in are pretty good, color coded and go well with a percussion gun, but if you can't use it, what's the good of it. As for the pictures, I compared a nest of the same size to give you an idea of how thick the "walls" are. It doesn't even fit my wheels while my regular head does (with green tape to protect the wheel from damage).