Doing it by hand with sandpaper is a nonstarter.
Also I don’t have a lathe :-/

  • jnj
    link
    fedilink
    arrow-up
    6
    ·
    1 year ago

    I’d probably chuck them into the drill press and take a rasp to them. You could get it consistent by using a consistent technique, and checking them against a gauge (e.g. cut a profile in a piece of cardboard).