Who makes the best mechanic tools?

black and decker, i guess.

Black and Decker? I don't think so. What's "best" ultimately depends on your needs. Snap-On, Mac Tools, Cornwell, SK Tools.. all make Excellent tools, but, if you're just a backyard mechanic, and not actually working in a professional capacity, then your needs aren't best served by spending the sort of money you would on a Snap-On, Mac, or Cornwell truck. Even as someone who turns wrenches for a living, I won't pay those kinds of prices for tools which don't merit spending that amount. Wrenches that'll only be used to tighten hydraulic couplers.. I use the Pittsburgh brand from Harbor Freight for that. Wrenches which will see heavy use almost daily.. those are all Snap-On or Mac. If you're just looking for something to keep in your car for roadside emergencies, or something to do occasional work on your car in your garage, you can get by fine with Craftsman. Even some professional techs use that brand for hand tools rather than the much more expensive brands. When it comes to air tools, going cheap generally doesn't benefit you there.