was at O'Reilly Auto Parts this morning and in front of me before I paid at the register I founded the demagnetizer for blades, this is an option not sure how well it works for your gravers but definitely worth a try at $2.99.
Did you move your bench Andrew?
For some reason my gravers magnetised a lot in the beginning. Then it stopped and I've haven't used it for years now.......maybe the sparrows were flying north that year or Pluto was aligned with mars. Who knows????
That's it!!!!.......with age comes demagnetisation, not necessarily wisdom.I can't figure out what changed other than me getting older (but not necessarily wiser)