A couple of hopefully useful observations:
As mentioned above, DISK SET STRIKER DISKS can be a real devil to remove.
DO NOT try and use circlip pliers as suggested above, they simply don't have the rigidity to cope with the torque required.
Heat is good in moderation, a very fine flame on a butane soldering torch may help but be careful not to temper the breech face. Little immediate damage may be caused but it isn't a good idea.
Remember that these little darlings are usually set at an angle into the breech face so the pressure on the wrench needs to be down the longitudinal axis of the firing pin/striker, most likely not perpendicular to the breech face.
A truly stuck disk can be removed with a suitable well fitting, hardened and tempered bit in a impact driver but only use this method in desperation, it will almost guarantee to mash the pin holes.
My personal solution is a length of silver steel or other hardenable tool steel, cut and ground to fit the holes AND the angle of the disk in the breech face, hardened and tempered. Cross drilled to take a 4" tommy bar, lots of soaking with release agent, moderate heat and a prayer to the guardian angel of gun owners (and you will still probably mash it!).
I will be thinking of you!
Toby
Last edited by Toby Barclay; 07/30/10 03:52 PM.
