The 3-jaw chuck has been on for at least a year. I need to change chucks.
It mounts on a taper and is drawn in and pushed off with a threaded collar.
The taper is holding tight after beating the spanner wrench for an hour with
a BFH. I even heated the collar. I'll try to get some Kroil in there but
it looks like a tough road. Any ideas from someone familiar with a RP?

Here's a pix of one like mine.
http://www.purplewave.com/cgi-bin/mn...?091006/8905/2