Quote:
Originally Posted by msgross
grind an "X" on the head with a cutoff wheel.. then use an air chisel to nip the four pieces right off... sometimes I had to use the air chisel with a punch installed to knock it out then... Didn't mess up the metal at all..
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I do this too, only I just grind one slot across the head instead of two, then hit it with the air chisel.
Or I'll just blow the center out with the plasma cutter, and a quick tap with the hammer and they fall right out.