Dewalt 3/8 Impact (photo 2)
Model: DWMT70775
$60
300 ft/lb
Was able to take off lugs torqued at 100 ft-lb. Couldn't quite take off ones torqued at 140(which is much to ask from a 3/8), but my air compressor likely doesn't produce the rated CFM to push it to it's full potential anyway.
Composite body
Light, compact and comfortable
Used only maybe 2 times
Great for getting into tight places, such as suspension work
Very minor scratches on it
Only downside I found to it is that yellow is a pain to keep clean
Kobalt 3/8 impact (photo 3)
$80
Model: SGY-Air231
350 ft.lb
Condition: new(open box)
composite body makes it light and comfortable
was able to take off lug nuts torqued at 140 ft.lb, which I haven't seen many 3/8 be able to do(including tool truck brands)
Kobalt SGY-Air216 1/2 in 700 ft/lb
Official page link: https://www.lowes.com/pd/Kobalt-1-2-in-700-ft-lbs-Air-Impact-Wrench/50159221
2 different ones available
1st one is $40(photos 4-5, right side in main photo). Plastic cover is slightly broken(cosmetic feature only) This was the first one I ever used professionally and went through quite a bit of use, but was taken apart, fully cleaned and lubricated plus outside received new coat of paint.
2nd one is $60 (photo 6, left side in main photo) Barely has any use on it, got it when I had more of a supervisor role.
It says it's 700 ft/lb, but it's underrated, there was a video where they tested all kinds of brands and they said this model seemed more like 800-850 ft.lb. I've only had 2 occasions where it couldn't break something loose, and both times other people's $500 Snap-On or Matco guns weren't able to break that loose either.
Kobalt SGY-Air236 1/2 in 1000 ft.lb (photo 7)
New, still sealed in package
$100 (sells new for $169)
Made of composite material and surrounded by rubber in areas that would contact the floor. Makes it super light and doesn't have paint that scratches off easily like guns that are made of metal.
Fits and feels extremely comfortable in the hand. Very light despite it's power, well balance, plenty of grip and support.
Built in muffler makes is quieter. And the exhaust vents down instead of back towards you.
Official page link: https://www.lowes.com/pd/Kobalt-0-5-in-1000-ft-Air-Impact-Wrench/1000404871