On Fri, 17 Feb 2006 19:55:21 GMT, Ted Edwards
wrote:

Alan Rothenbush wrote:
(The chuck I bought initially does not have the holding power I'm hoping
for)

Any chance you could replace the magnet(s) with rare earth magnet(s)?
See the Lee Valley site for some shapes and sizes. These are MUCH more
resistant to demagnetization and are damn powerfull.

Ted

I think those are poled wrong, Ted. The Lee Valley magnets are poled
axially while I think the magnet in a mag chuck is poled crosswise.