I had a really good Matco guy, so like 90% of my tools are Matco.
Snap-on is good stuff, but expensive. And the only two Mac guys I knew were complete ********. I didnt like there stuff that much but I needed stuff and needed it now and it was their day. Most of it got returned.
Craftsman will NOT warranty any tools used professionally. If you break a tool and you go in your monkey suit, they will AB-SOUL-UTLY DENY warranting that tool. FYI.
Though if you need to buy one socket to weld to make a tool, definitely go there and buy that one socket.
If you need a wear item... punches, drill bits, chisels, etc... Harbor Freight. Dont buy hammers from there, but if you are definitely going to break it or wear it out, their prices cant be beat. Do NOT try to weld their sockets or anything. Who knows what metal they are made out of.
As for tool boxes... You will see guys buying the biggest Snap-on triple bay box. Think of it like an expensive car... how small is your dick. You dont need a box like that. Just get something ball bearing. It will do you a load of good. Dont buy one with a built in fridge or radio or cooler, or... well a light can be good if you get a hutch. That stuff comes out of you pocket. The shop will never ever reimburse you for that. And one day you may roll that box home, do you really want a triple bay in your garage? I mean, the answer is yes, but you know what Im getting to. $10,000 for a double bay could be another car, or a twin turbo lsx.
I spent 10 years as a tech and got tired of the ********. All I wanted to do was make money but I was working 6 days a week to bring home 45-50 hour paychecks. To me, thats a prison sentence, some real chain gain bull crap.