Do you have a percussion nipple wrench or a 1/4" drive four sided socket (call your Snap On tool man about the socket)? If not you'll risk rounding the shank. Even though a little carefully applied heat should get the penetrating oil down into the threads. Heat then apply penetrating oil, repeat several times.

Steve

Last edited by Rockdoc; 01/27/16 04:27 PM.
Approach life like you do a yellow light - RUN IT! (Gail T.)