N. Thornton wrote:
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.


To expand on that good advice: if you do decide to go this way, it's
vital to avoid damaging that screw head - even though it does mean
grinding through the whole diameter of the chuck body.

The screw head is countersunk into the rear wall of the chuck; to help
judge how deep that is, probe down between the jaws with a bit of thin
wire. Then start cutting some way further towards the nose of the chuck.
When you break through to the inside, check again that you're going to
miss the rear wall and the screw head.

When you've cut far enough, the drill and pieces of jaws will probably
fall out, so now you can simply remove the screw (clockwise - it may
need a sharp jerk to free it). Then clamp a Mole wrench onto what's left
of the chuck, give it a tap in the opposite direction. The whole thing
will come free, and you've got your drill back.

If you don't already have an angle grinder, this is why you always
needed one ;-)


--
Ian White
Abingdon, England