"Tim Wescott" wrote in message
...
On Wed, 18 Apr 2012 18:15:01 -0400, Jim Wilkins wrote:
A 1/2" one-flute countersink may do the job well enough.

Thank you. I happened to have one, and it made a nice clean round
hole
-- just like I wanted. My ass is saved -- for the moment.

It's one of those head-smackingly obvious things in hindsight, isn't
it?
Tim Wescott

Only after trying it. See what a multi-flute countersink does on a
test piece.

jsw