Store brand or 'Truck' brands... I don't care what I use if it works.
Most of my tools are Sears, but for a few of the really 'Touchy' specialty tools, I have Snap-On or Mac.
The 'Truck' tools are just fine, but the stores have never closed up or moved when they knew I had a lot of warranties...
The truck dealers just avoid you when they know you have a butt load of broken stuff...
When it comes to things like Tap & Die sets, go with something like 'Blue Point'...
Most of the premium dealers are relabeling Blue Point and they are truly a good deal.
If you are just chasing threads in blocks and on bolts, go with Sears.
STAY AWAY FROM ANYTHING MADE IN CHINA!
They haven't learned how to temper steel yet, so there is no such thing as a sharp tool that's going to stay sharp, or not wear away in noting flat.
For things that my body parts depend on, like 'Wobble Extensions'
(An extension that is under cut so the socket can misaligned slightly)
I stick with Snap-On or Mac, simply because the undercut weakens the extension, and I want premium steel between my knuckles and something hard and sharp!
Stanley tools are a deal right now.
Stanley purchased MAC tools, so now most of the Stanley stuff is being made in the MAC plant to MAC standard.
$79 for a set of 1/2" drive impact sockets from MAC,
Same set at Walmart under the Stanley name (same part number even!) for $19.95.
I have a lot of Proto ratchets.
Well built, good price, good teeth counts so they work well in confined spaces, and the store doesn't move when I need a warranty.
They don't give me a 'Kit' and tell me to fix it myself either... (that REALLY pisses me off about sears...)
Proto dealers always give me a new ratchet, which makes me smile!
S-K is a pretty good brand.
Pretty good convergence between price, warranty and quality.
I have a few Matco, Mapco, and parts store brands also, like everybody does, but I can't really say I'm real happy with the parts store brands... (NAPA in particular).
If you are buying tools you are only going to use a few times, like harmonic balancer/ steering wheel pullers, then buy discount.
Same with a lot of the 'Single Use Every 5 years' tools you will need down the line.