got myself a crank extractor, bb extractor, popped the dustcaps off, took the holding bolt out and lined up my crank tool.

"hmm, whats that?" i said to myself as bent over for a closer look.

the threads are torn to pieces, some big ass groves running down some of them. No idea when this happened, i had a full service some time ago and nothing that would be remotely BB related since, i didnt even know they touched the BB during the service.

now, how the hell do i get these cranks off now? taps with the hammer did feck all, whacks with the hammer did equal amounts of feck all. I need to replace them ofc but im wondering how the hell to get em off in the first place.

clues?

btw it is an octalink, crank extractor is the CCP-44 and the BB tool is the BBT-22