I have a 3/8" drive pneumatic ratchet that I got from Walmart about 20 years ago ( Campbell Hausfield and came with a blowgun kit for under $20) but it has plenty of torque for small bolts up to about 1/2", it will twist off a 1/4" bolt if you stay on the trigger. I like it because you can hold down the trigger and use it like a regular ratchet to break loose or put more ummph to tightening after it stalls out vs an electric that would burn out the motor if you did that very much. Very handy for getting into those tight spots where you can only get maybe a 1/8 turn on a nut at a time which is why I bought it to start with, but use it all the time to install bolts in these kit built shelfs, tool boxes etc where you have a bazillion small bolts to install, and I like the sounds of an air tool also rather than electric motors that overheat, burn up, have very little torque etc. I just put a few drops of air tool oil in it before each use and so far never had any trouble with it.