Up to 38mm and 2" in sockets and SAE wrenches up to 2", I used to use the bigger stuff for hy-rail wheels and bearing locknuts on railroad equipment, plus of course axle and pinion nuts, crank bolts that kinda thing
3/4- HF one that isn't used often
1/2- Old trusty Craftsman, or 24" Mac 36 tooth
3/8- Snap-On FHNF100, round head 100 tooth
1/4- Snap-On TF72, flex head dual 80
Legitimate claim, I had a 36" pre capped end that was cracked and bent I got off craigslist for 25 bucks, my dealer took it and gave me a brand new equivalent capped end prybar