Frozen micrometer

[JScott]

Well, the micrometer battle is not going my way. I have been soaking the spindle, lock and thimble in Kroil since last week. I have heated it up with a heat gun (hairdryer), I have frozen it with canned air turned upside down, I have hammered on it with my non-marring hammer and twisted on it to no avail. There is some rust colored sludge coming out between the thimble and the barrel but this could go on forever.

Thanks for all the suggestions everybody. Looks like this mic is going to end up as a "wall hanger". Oh well, back to the auctions.