Frankentruck wrote: ↑Sat Jun 22, 2024 11:27 am So 1/4" drive, 3/8" drive, 1/2" drive ratchets. That is an interesting question.
While those three are the most common, they get larger. We have lots of 3/4" and 1" drive stuff at work. Lots of guys at work have 3/4" drive tools for working on tractors and equipment.
There is also the 3/16", 1/4", and 3/8" hex bits and drivers.