Automotive, Machinist (A real one) I have done a lot of others as well. Welding, electrical, construction etc. I love them all just can't make a decent living with them any longer so I do something that requires little skill but makes more money, sad but true. I would like nothing better than to have a large machine shop again but there is really only heart disease and ulcers in that business anymore.
I have a ton of tools and have been in a few trades so I like most everything. I have to thin-out some tool boxes so this may be a good place for that. Here is my "wrench" box I wanted to share.