On 2009-06-28, Joseph Gwinn wrote:
When you get into really high-speed cutting, Joe, they often run dry -- or
with a 1/2-liter per 24 hour lean oil (vegetable) mist.

Yeah, that's now true, at least for the 40000 rpm spindle folks.

Most of the machining centers I've seen use a flood though.

How do they keep the cutter cool, then?

i