"Snag" fired this volley in news:lkuru.147492
:

Lloyd ,
re-read your statement about feed rate vs tool radius . I find I get
the
best finish if the tip radius is larger than the feed rate ...
--

And yes, you do require a larger tip radius than the feed rate.

The thing about the edge radius is important, because most folks don't
have the ability to hand sharpen and hone a tool well enough to take off
a mere tenth. I don't think I do anymore, and certainly not at the
cost/time of decent insert.

LLoyd