No no, please don’t do this without eye protection. I did some grinding without eye protection, didn’t hurt or anything, but day later doctor had to drill metal particles out from my eye balls.
0/10, would not recommend
and they said that I cannot get MRI ever again, because some small particles might be still inside and magnet can pull them out. Fun stuff.
He is talking about fossils, they are not bones, just imprint of them.