I've done the same thing when I didn't have the right size of pin punch. (Unfortunately one of the standard pin punches seems like just the right tool to unscrew the spool part from a Massey 40 Industrial's power steering control valve spindle. If it is really, really tight, the outcome is a broken pin punch, and then you take the valve to the tractor dealer to disassemble. Since then there has been a gap in my range of pin punches.)
