"Ace" wrote in message
...
any tool wear would tend to force tool out of cut without digging in, and
kept nose radius approx. .02 inch.


On that note, I've found it's actually a very good idea to keep the body of
the toolbit at very close to perpendicular to the work such that it's far
less likely to flex away from the work and cause scoring marks around the
part.

It sounds like a non-issue, but I've had good success following this rule.

Regards,

Robin