I think you may be right. I have seen turners crank down on chuck keys like
they were tightening the lug nuts on wheels for a diesel truck. I don't.
I just snug it down tight. I seldom lose a piece. I don't think its
necessary to use so much force.

Barry

"charles jones" wrote in message
...
I think that you may well be overtightening the chuck. I have never heard
of
anyone in the UK having this problem. Personally, I have had one of these
chucks for two years now and find it holds very well without exerting
excessive torque to the key. If you make sure that when you cut your
mounting dovetail, the whole of the circumference is in contact and not
just
the corners of the jaws, then much less pressure is needed between jaw and
wood. A bonus is that there won't be any jaw indents in the wood either!
Charlie (Oxford Woodturners club)
"Ken Moon" wrote in message
ink.net...

"Andrew Morrison" wrote in
message
...
Hi, I broke the pin in my new super nova chuck key so my retailer had
it
exchanged for me.

I didn't have the replacement very long before the same thing happened
again, this time I just replaced the pin with a nail of the same
diameter.

The replacement nails broke a few times as well & by this time I was
becoming mightily ****ed off when I had the idea to replace the nail
with
a
toughened concrete nail. I have now been using a concrete nail for
about
6
mths & it is still holding.

If you have been having this problem then try my concrete nail fix &
I'm
sure it'll work for you.
============================
Another fix is, if you have an old set of dull drills, just cut and use
one
of those. HSS would be best, but carbon steel shoould do fine.

Ken Moon
Webberville, TX