The lifetime guarantee and overall quality of Craftsman make it a desirable choice. However, they pale in comparison to the very old set of "S-K" tools my dad has. It appears these tools are absolutely indestructible. I've accidentally broken sockets and socket wrenches from Craftsman and other brands, but never the "S-K" brand. I don't know what "S-K" stands for, but I know they are (were?) made in the U.S.A. They always come through. I think I'll look for a set myself. Good luck!