Agreed I had a piece of a chisel shrapnel cut me in school. It was just a really weird cut/injury that took way too long to heal.You got it off...All that matters.
I would've weld three pieces of bar stock into a tripod then a 5/8" nut & use a slide hammer, That hard bearing race material spooks me as I've had to remove pieces of it from under my skin more than once. Couple years ago had to go to a Care Now & have a piece cut out, That $800 bill wasn't worth the time saving Cowboy s**t!!
I dunno if you followed the controversy with Myth Busters years ago when they claimed to have busted the myth that it doesn't matter if you use a hardened hammer with a hardened chisel. LOTS of people told them they were wrong (I agree) and I think they rescinded their findings.
Ball peins or similar only with chisels! Definitely not framing hammers.