I'm no expert, but having just removed my first spur casings this evening, it sounds like your hen may have already had the spur casings removed as well. What you are describing sounds like what my roo was left with when I was finished.
My question was going to be, after this softer, smaller spur hardens, is it safe and painless to use the Dremel and dull the point of it down?
My question was going to be, after this softer, smaller spur hardens, is it safe and painless to use the Dremel and dull the point of it down?