What size of power drill for scissor jack socket?

1/2" 18 volt impact, And I'm only 56 years old but last Jan. had 3 low back surgeries, so I'm happy that your 80 and can do it by hand. I didn't hurt my back by being lazy. If I pull into a campground I don't even unhook because we only stay one night in camp grounds with other rv's 5' away from me. We're boondocking and I find that if a little thing like a power tool saves me from a painful back, then I'm using it.