Originally Posted by
wroomwroomoops
Just FYI, the tool in question is (was, actually) Super B 3340 "Chain rivet extractor". The counter-nut is made from some really cheap, soft steel, because its recess is totally deformed.
Some pics of the tool as new:
What is it with some tool designers? They make a fine looking chaintool like that and then proceeded to slap some cheap *ss steel counter-nut on it. I am just exasperated!