On Wed, wws wrote:
http://www.theregister.co.uk/2005/11/29/smallest_hole/
Not actually drilled, but really small.
I wonder if its round.

Dave Hinz wrote:

I wonder how you'd tell, and how you'd measure it?


Geez. The red C* hair chart. Refer to append. 3c for
roundness/straightness factors.

Helped?

~D