When I started in the electronics factory one of my better job assignments was building small KVA power transformer assemblies yup...with YANKEE SCREWDRIVERS it was what they gave us to reach down into the deep metal boxes and tighten the nuts we had previously reached down in there to start with our fingers. It was piece work assembly man could we make those things sing for money
If you ever got your fingers pinched look out man did that hurt.
I actually got severe case of tendonitis in my elbow from using them 8hrs a day 5 days a week and needed cortisone shot.
We begged for years and they finally hooked up air lines and gave us (there was 3 of us) ONE inline air driver to share. Was on a coil hose hanging down from above between us, we would stretch the hose and the tool would recoil across the tables to next guy