I have a pair of these Wilde pliers that I like.
http://www.harryepstein.com/index.php/8-hose-clamp-w-o-grips.html
Shipping to Spain might be a lot though.
Harbor Freight Pro sockets are good but, kind of thick. I would avoid the really cheap sets that aren't labeled pro. Stanley is also decent but the chrome will chip more easily than nicer sockets. I think they are both fine for DIY type use. Sometimes Cripe will have good deals on sockets too.