need an industrial strength penetrating fluid

[ebc]

Greetings,
I have a very stuck choke tube in a shotgun barrel (its a 410 bore with very fine threads). The problem is carbon fouling in the threads from lack of maintenance. (Previous owner). Any suggestions on a real potent penetrant are appreciated. (Have tried S'OK! to no avail).
Thanks,
ebc

 

[brian fix]

Try carb. spray,,let soak a bit 23 min. try again,,,or if really stuck,,,get some liquid nitrogen liquid,,,wear some very good gloves to protect yourself,,, use liquid nitro., get cold and try to work loose,,,,,though nitrogen is to be get by a supply house of gasses,,,,for common penetrants,,,Schaeffers pentro 90 is a thought to try,,,BL

 

[Brett Miller]

You might want to try some Kroil.

 

[ebc]

Thanks to all.
After shooting the thing, the choke came out. Great little gun.
ebc

 

[Al]

quote:

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Originally posted by Brett Miller:
You might want to try some Kroil.

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Agreed