I bought this set to help loosen a stripped nut. Buying a set was cheaper than buying a single beat, so it seemed like a no-brainer. It was pretty easy to use with my impact wrench. Simply select the appropriate socket, slide onto the impact wrench, slide onto the stripped nut and move in the opposite direction. The bit actually threads onto a stripped nut/bolt and when it snaps the bit and nut/bolt combo snaps on quite hard and in my case the lug nut came loose immediately! After that I put the nut in a vise, pushed the punch forward and after a while unscrewed it. It's worth the money and I'm glad to have it in my toolbox now.