It really depends on the job you're doing. I started out with craftsman 25 yrs ago. I replaced their wrenches quickly. Still have most of the sockets though.
I've used quite a bit of harbor freight too.
The HF toolboxes are great for the money, sockets are fine, and I do really like the icon ratchets. Good 90 tooth. The other offshore stuff is mostly 72 or 60 tooth and it makes a big difference in tight spots. If you have room it's not necessary.
Semi trucks and trailers arent fussy, but cars..........lots of extremely tight situations and of course time is of the essence in a shop.
I have known many mechanics to use solely HF stuff and do just fine, they just simply dont demand much from their tools.
I have not been impressed at all with tekton.
I do like SK, Wright, William's, proto. Although SK tends to be very thick and tough to get into tight spots sometimes. Socket and wrench thickness matters sometimes. Again it just depends what you're working on.
If I was solely an auto mechanic and flat rate and time was king and tool failure not an option, I would have to go snap on. Or matco. Mac has cheapened out.
When I was working on F16s in 03-07, the USAF used Armstrong and proto, some Blue Point (lower grade Snap On). I think they've switched out to all Blue Point in 07. Near my end all the Armstrong and Proto tools were rounded up and shortly left unsupervised....

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