chuck it up in a hand drill grabbing it by 1/8 inch on outside end and use a really good file as you spin the pin work the file back and forth.
I sometimes break the hardened layer with a coarse stone then the file. Just have to remove a few thou from the diameter.
hit it with some bluing paste and yer done.
or reuse your norinco pin as it is correct length and diameter.
I sometimes break the hardened layer with a coarse stone then the file. Just have to remove a few thou from the diameter.
hit it with some bluing paste and yer done.
or reuse your norinco pin as it is correct length and diameter.





















































