Bob Engelhardt fired this volley in
:

How fine do you feed? What are the considerations in doing a very fine
feed?


You can feed as fine as you wish. A lot of industrial precision cutters
take off mere microns per pass.

Your concern about "skating, then hogging" is only a legitimate concern
with positive-rake, fairly dull tooling.

Do the same with a zero or negative rake tool _that_is_sharp_enough_, and
you can take a 0.0001 cut (or a 0.000001 cut), if you wish.

Basically, if the cutter edge has a radius of a small fraction of the
feed distance, and has a small enough rake to NOT pull itself into the
work, it will do just fine.

If you're using HSS tooling, I'd keep the feed above 1.5 thousandths.

Lloyd