Take your time and carefully peen them back into shape. I am using a 4 oz. hammer. Tap, tap, tap LIGHTLY. Don't use your BMF64OH. Take your time and carefully work the metal back in shape.Take your time! I used a screw scrap screw to demonstrate. Looks really bad. So let's see what you can do. I like to lightly hold them in a lathe chuck. After I get the metal pushed back I carefully file rounded screws or lightly face flat head screws. Clean up the slot with a needle file or hacksaw blade if it's small. Miniature hacksaw ($5 0r $6 at the hardware store) has a thinner blade if needed. Take your time. Polish with fine paper and oil. Oil contains the abrasive and keeps it off your lathe ways. Also floats the metal particles avoiding clogged paper. Cold blue. Look better?
You can also do pretty well polishing in the drill press or even a hand drill.
You can also do pretty well polishing in the drill press or even a hand drill.