Ed can you tell me what exactly I am working on as I can't really see in there. I figure it is some sort of lock/set screw but with a large body and the allen slot at the end (which is not jammed with a broken bit). I have been spraying it but wonder if I can somehow remove whole unit so I can just grab it with a wrench and loosen. Also, is it possible do you think to replace that lock/set screw since mine is going to be melted fudge by the time I get done?

Thanks,

Red