Powerbuilt Zeon lug nut sockets are designed to grip and turn damaged and rounded wheel lug nuts. The patented design will grip and turn lug nuts up to 85% rounded. And they work just as well on new lug nuts.In other words, if you’ve got a lug nut that you can’t turn, we have the help you need.The secret is the patented Zeon design - the more you turn them the harder they grab and hold damaged hex heads. They're constructed of premium impact-rated Chromoly steel for unmatched strength and durability. They won't scratch your high-end wheels though, thanks to the included protective plastic wheel saver sleeves.