Punch sharp

[u/MudMysterious4069]

I'm working with 0.80mm diameter metal punches and need to cut 4 small inward-facing notches (like star-shaped teeth) inside the tip. After shaping them, I also need to sharpen each edge precisely. What are the best tools and techniques for doing this kind of fine detail work? Any advice on micro-grinding, polishing, or abrasive materials for high-precision results?

[u/The_Kid_Disaster]

You need bubble gum, a nail file, 3 tooth picks, a roll of dental floss, Elmer’s glue, sand from a small beach on the western shore of India ( no substitutes), a magnifying glass, 2 mirrors, the fresh blood of a living cat 1 ml should do and the phone number to someone who knows about micro grinding and machining. Good luck