"Dave Hinz" wrote in message ...
On Thu, 28 Apr 2005 16:17:59 GMT, Tom Gardner wrote:
Major NG sore spot! Drill Doctors are CRAP!!! One of my guys has one and
brought it in and sharpened a bunch of drills that then wouldn't cut.

My personal experience differs from your observations.

Upon
inspection they had a slight negative rake Hmmmm.

Can't imagine how that could happen unless he was using it very
wrong. The camming action of the drill holder is pretty un-screw-
uppable.

If you learn to do them
by hand, you will learn empathy with the bit and become a better
metalworker.

Sure, but saying that Drill Dr. is crap because it's fundamentally
flawed isn't an accurate statement.


I have two of these. A 750 bought about 4 yrs ago, and a 400 bought recently. I never could get the 750 to sharpen
correctly. The 400 works great. Discovered that the collet holder that came with the 750 was different than the 400's.
400's holder works in the 750. Found out too late that they redesigned the holder and were replacing the old holders for
free......Paul