On Fri, 04 Jan 2008 10:13:33 -0500, Joseph Gwinn
wrote:


Also -- any grease in there will be likely to hold some swarf
which will then dent either the collet adaptor or the inside taper of
the spindle -- or both -- introducing some more runout.

I'm assuming that one will always wipe the mating surfaces clean before
attempting assembly,

But NEVER clean the head stock taper with your finger while the lathe
is running, don't worry, even I wouldn't do that!
Gerry :-)}
London, Canada