Removing router bit that is stuck with damaged shaft

powertoolsrouterstools

I got this router from a family member for free but the bit is stuck. It's waaaay over tightened. Trying to get it out just damages the shaft (which I already managed to do). What is the best approach to loosen this and get the bit out?

Thanks!

EDIT: Following several suggestions, I tried using the pin with a bigger wrench. I tried before but only with the supplied wrench. Here is the result. It is waaay over tightened or there is some other reason why I can't loosen it. That's is way I asked for help here.

EDIT 2: thanks for all the suggestions. I will try the different approaches and report back.

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Best Answer

While the other answer is correct in normal conditions - that is the purpose of the pin.

I would use a bar that fits into the hole in that shaft and a properly fitting wrench as if it has been overtightened it will need some force to undo it.

Using the normal mechanism relies on the strength of the aluminum casting which may break under these conditions. And looking at the first picture it looks as if that casting is already cracked so take care.