#1
They are .016-.052, all black nylon tape wound. Pretty sure they're some kinda jazz string, got em for free.

what do I do with them? will they even fit an unmodified nut? should I like, put em on my carvin with emgs and downtune a step or two... or three, and try to play some real heavy stuff?

or are they basically not useful? I have a really crappy broken old johnson I been using as a dobro with a little piece on the nut that raises the action... it needs new strings and I never intend to use it for anything but learning (working on lap steel and pedal steel a bit... too), and I figure I could always throw em on there, just so its usable for learning, if I cant actually get them to be useful on my electrics. idgaf if it sounds like shit in that case hahaha.
Gear:

Jackson dk2m
MIM strat
peavey jsx 2x12 combo
Recording King RDC-26
Digitch RP1000
Crybaby 535Q