On 2010-08-16, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ignoramus28874 fired this volley
in :

http://www.darex.com/industrial-dril...grinders/e90-e
nd-mill-grinder-and-sharpener.html

Yep. That's it. It has an air bearing spindle that allows a bit to follow
a "tracer finger" so the flutes are re-ground precisely. Of course, it
will reduce the diameter of the bit, but quite reliably and accurately.

The Darex is sort of the "Cadillac" of end mill sharpeners. I find them
used, but in good condition, on Ebay for about $1400.

That's pricey, makes regrinding not economical on my scale. And the
Darex probably does not do ball ends, or even plunge cutting square
ends, right?

i