John Rumm wrote in message ...
N. Thornton wrote:

replacement chucks are only a fiver or so, so if it comes to it you
could always saw/angle grind the old one off and replace. They screw
onto a standard thread. But hopefully you should be able to get it off
somehow. Penetrating oil might help, maybe.

They do screw in - but many also have a counter threaded screw that
holds them in place as well (drills with a reverse action would have a
problem without it!). Trickey thing is you get at this screw down the
mouth of the chuck.

i dont think any of that would stop a grinder, if thats whats needed.
Not sure how long itd take though, lot of metal there.

NT