On Jun 8, 11:57*am, Joseph Gwinn wrote:
I've had the same experience with brushed oil. *The problem is that the
oil keeps the chips in the action. *A mister with enough airflow to blow
the chips away yields a considerable improvement, as does copious flood
cooling.

Joe Gwinn

They do, on machines made for it. The tee slots on my Clausing are
open-ended and no way do I want the curved slivers from cutting with
the side of an end mill blown on the floor, then tracked upstairs, and
permanently stuck in the rug.