Screw Restoration

[Warren]

drill a hole in a piece of steel the size of the screw head. I use key stock
Turn out a punch or find one the same size as the hole in the bar of steel
Drill another hole slightly larger than the size of the screw shank in the centre of the first hole using number drills (one or two numbers larger)
Put the screw into the hole and using the punch swage the head back to size.
Once finished recut the slot with a hacksaw blade with the set cut off on a grindstone.
If a revolver the slot will be very thin but the blade will cut no matter how thin you grind it as long as it still has a few teeth left on it. Just grind the sides of the blade, NOT the top
Try it, you will be amazed.
Keep the steel bar and punch as you will be using it again over the years or doing jobs for others.
I have a piece of key stock that must have 30 plus holes in it from over the years.