I've been using my HF stuff professionally since 2013, or whenever I got newer purchases.
1/4" Die grinder still going strong.
Smaller Air Hammer still working well.
Wobble Extensions (I broke one, oh well they were 10$)
Wire Strippers (These work better than my matco strippers)
Torx Sockets (Broken 1 torx socket, tightening my snapon 3/8 flex.)
Big set of titanium coated drill bits (I broke 2 of the very small ones, but it was honestly mistreatment, they shouldn't have a 240LB fat *** man leaning on them) Otherwise I use these a lot. They cut so nicely. Never get dull. Maybe if you used single bit every day, without cutting oil, for a week or two. But damn, for less than 20$ just get a couple
Service cart 5 drawer series 1 (Used for over 2 years with no issues)
44" Tool chest series 1 (used for 2 years or so with only minor chipping of powder coat, and I was using it as a roll cart)
Impact Sockets 1/2" Been using these over a year now. Great impacts, too bad about the size skips. I'd recommend getting tektons for budget, or gp duo sockets instead.
Pittsburg Pro Ratchets. I've absolutely abused the **** out of these for over a year now, wow. Amazing ratchets, amazing price. Buy 2, if you break on you have a back up, and you can swing back to the store for a swap, grap a pack of electrical tape and a free magnetic tray or batteries...
Scotchbrite style pad cleaning disc (rolocs) (cleaning cookies) I've used the red and blue, the work, they are super cheap, they last a decent time, love these.
Free flashlights/magnetic work lights/head lamps. Just dont okay. Get the micro fiber cloths, or batteries, or magnetic tray / strip.
Harbor freight seal driver - okay well I've used this a handful of times, and the handle is starting to mushroom, but it has made me some good money so it was worth it. I need to get a handle that is made of steel.
Harbor freight Ball Joint press - Works well, has made me money. I keep the forcing screw lubed with silicone spray.
Harbor freight oil filter housing sockets - Works. thats about all I can say. I've only needed them about 3 times since I bought them, I dont do oil changes much anymore.
Harbor freight small metric tap and die set - only worth getting if you are in a bind, its missing needed automotive sizes, and it only goes to 12mm bolt size. It has a bunch of basically useless sizes as well.