On Thu, 28 Aug 2008 19:02:29 -0400, "DrollTroll"
wrote:
snip
The advantage with c-drills is that if you need a 60 deg chamfer, it's right
there.
It would probably be perty useful to have sets of spotting drills of
numerous chamfer angles, from 60 deg, to 120 deg, as my set kluged c-sinks.
snip
FWIW
see http://www.use-enco.com/CGI/INPDFF?P...PARTPG=INLMK32


Unka' George [George McDuffee]
-------------------------------------------
He that will not apply new remedies,
must expect new evils:
for Time is the greatest innovator: and
if Time, of course, alter things to the worse,
and wisdom and counsel shall not alter them to the better,
what shall be the end?

Francis Bacon (1561-1626), English philosopher, essayist, statesman.
Essays, "Of Innovations" (1597-1625).