Hi Krazypan

I usually just pry the key out with some side cutters but if it's completely seized in then a few other methods may be needed.

If side cutters don't work I would drill and tap the key and use a slide hammer but welding metal to the key is another method.
Some video footage here https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/104800/stuck-woodruffe-key.html


Cheers
Max

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