Short Circuit Safety tip
I've worked with 48V @ 370Ah lead acid battery banks. We were required to short-circuit proof our screwdrivers by completely covering the metal shaft with shrink-wrap, thick wraps of electrical tape, or PLASTI DIP. Only ≅ 3/8" of bare metal of the blade was left exposed. That made it almost impossible for the tool to cause a short.
We did the same for pliers and wrenches.
The first thing I did when I received my nut-driver was shrink wrap the shaft.