Archie wrote:

In a lathe the only thing keeping a  large drill from rotating in the tail
stock is a taper fit.

Sorry to break in here, guys, but taper drills have
tangs on the end which fit into a slot in the receiver
to prevent rotation. (drill presses, lathes, etc.)
Archie

You are right Archie. Major brain fade on my part.
I forgot about the tangs. Perhaps I was thinking
of Centers. Do Centers have tangs too ?

Paul Lamar
 
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