Search the archives as this gets discussed monthly if not more often. The discussion results are always the same, Merkava (who doesn't use his tools and hasn't used a Craftsman Pro wrench) will say they ****. He used to swear by Snap on but, now he's on the industrial supply store band wagon. Here's the bottom line, industrial wrenches such as Proto and Armstrong are good but unless you score a deal on ebay, they're not a whole lot cheaper than a tool truck brand. Secondly, there's nothing wrong with Craftsman pro wrenches. They will serve you well and if you pick a set up on sale, I would say you can't find a better set of wrenches for the money (spectacular Ebay deals excluded). Every manufacturer too include the tool truck brands, has quality control issues. There are many threads here about off centered boxed ends, rippled wrench bodies, etc. You can't get a 13 piece, fully polished, US made, lifetime warrantied, long combination wrench set for under a $100 that will perform as well as the Craftsman set. Besides, those Craftsman Pro wrenches come out of the same Texas Danaher plant as Armstrong.