I always liked SK tools. They never had near the advertising and hype Snap On and the rest had, but the quality was top notch. The rep we had only had a one ton Ford van, solid white and unmarked. The only money spent was on quality tools. They still make SK tools, but I don't know if they are made in USA anymore or if the quality is as good. Our auto shop instructor in school had a very expansive Proto tool set. It was one of his personal sets, but it was what he furnished for the students to use in his classes. He had a very strict check out system using trusted students for tool room duty each week. You were initialed a round chip with a corresponding number on it to the tool(s) you got and the chip got hung on the board where the tool was. The tool room guy knew exactly who had what. I don't remember any tools ever going missing.......but we all had too much respect for Mr. Lovett to ever do anything like that. He was a good old dude.