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· Registered
Retired Engineer, Hobby woodworker
35 Posts
HI, I have this router with a 1/2" bit in the collet which is so frozen tight that I cant loosen the collet . Anyone with suggestions please. already broken one locking hole, only two left.
Try spraying some PB Blaster on the shaft of the bit. Let it sit a few minutes and tap the the nut with your wrench. You may need to use a longer handled wrench or a cheater bar. I am assuming you left the bit in the collet for long enough for some nasty rust to seize it up. It's a good practice to remove the bit from the router when finished with the operation you needed it for.

If that doesn't work use a heat gun.
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