I've filed the pins down to almost flush with the plastic and no matter how hard I bang on them with a punch, they won't budge!

The odd thing about these pins is they didn't look like the typical two-part peened pin over washer idea, but rather were just a single part, round semi-sphere at both ends.

I filed both ends and they just look like smooth circles. I really don't want to damage the scales as they're the reason I bought the razor.

Any ideas?