The instant easy answer is a palm nailer. This is great if you
already have air and if you might ever need to again.
If it is just a matter of setting 2 nails, there are some cheaper
alternatives. A 1/2" bolt of an appropriate length would work.
Any block of solid steel - round, square. I use a 6" block of
1"x!" steel hot roll, I've drilled a hole in one end to start
nails, turn it around to set them.
A live Singing Valentine quartet,
Click to see the full signature.