Thanks to Bob Engelhardt, I googled "Darex Drill Dcotor" this morning.
The company is now "Professional Tool Manufacturing".
I called there 800-597-6170 number and got a real human being right
away. They told me they have made some design changes and one of them
is a change in chuck camming. Even though I've had my machine for a
number of years (hadn't ever used it until a couple of days ago, they
are sending me new chucks for free.
Thanks again to all those who commented to me on this. I have to
agree that, once I figured out the negative rake problem, the flutes
sure were nicely centered.

Pete Stanaitis
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