If you are seriously going pro get all the hard use tools made by Snapon they cost more but well worth it. You will be buying them sooner than later. Hammers, punches drills taps and dies for example won't make a difference so Craftsman will do the job,but sockets, wrenches, screwdrivers,ratchets etc do make a difference. You will not believe that sockets will wear out till you use then all day long. I am not impressed with Snapon air tools though. Unless they have changed Ingersol Rand which I have out performed and outlasted my Snapon air tools.