My dad was a machinist all his life. He could take a 1" x 2" stone, and
sharpen a drill in very short order. I can't do it yet with my Drill Doctor
750. I remember that twisting action he had. About five or six twisting
strokes, an eyeball, some more, another eyeball. Don't have a clue what he
was looking at. He musta been good at it, because he a lot of guys
commented on it. Never ever saw him used an electrical device, only a
I think 135 degrees is traditional. Now, (Best Dick Donohue voice) listen up
boys. [Cough; cough] There is a leading edge, and a trailing edge. The goal
is to get the trailing edge back a ways so the leading edge does the
cutting. Got it? Here, I'll show you again.
Mr. Donohue was my shop teacher. He was also about a two pack a day smoker.
He's dead, now. I learned a lot from him, like not to smoke.
On Feb 20, 2:09 pm, email@example.com (Herb and Eneva) wrote:
Have a good machinist show you how to sharpen bits by hand. It's hard
to explain, but easy to copy once you've seen it done. Any well
lighted tool grinder will work just fine for bits 1/8" and up. Smaller
dull ones go in the trash, so buy them in lots of a half dozen or so
from a supplier like ENCO. HTH
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