Hi Powrkraft was made by Wright and some others like Industro or Thorsen. Great sockets, rachets, etc. New Britain made their own stuff and also owned US Husky and Blackhawk before the 70's I think. Blackhawk today is owned by Stanley, as is Proto. US Blackhawk is good, either era, but more modern is influenced much by Proto (very much similar to Proto). I like old New Britain or Husky US or Blackhawk stuff. I think they also made some MAC stuff and other brands. Could use an assist here on GJ on all the other brands made by New Britain. I do think of them mainly for sockets, rachets, extensions. Don't know much on the wrench side of them. I put these up better than old Craftsman, even V, if a small step down from say Snap On. I'd say $1 a socket and $10 a rachet wrench easy if in good shape. If rusty, then $0.25 a socket or so. It is all available still but depends on the condition. - Paul