Help! I bought a used Smith 63-4 22lr revolver and was changing the front sight from the black ramp to a fiber optic. Unfortunately my 1/16" pin punch snapped off when I was pushing out the small pin holding the ramp in. I tried another punch from the other side with no success. I put a little lubrication oil in the hole to see if it would help loosed the punch but so far no luck. I can't find my WD40 but am planning to buy a can to see if that helps. Anyone have any suggestions before I take it to a gunsmith? Thanks!