Re: Forstner bits

On Jun 27, 11:50 am, "Swingman" <k...@xxxxxxxxxx> wrote:
"John Martin" <jmartin...@xxxxxxx> wrote in message

news:19a9f46d-f713-4a14-bcd1-93f967f43727@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Jun 26, 7:08 am, "Swingman" <k...@xxxxxxxxxx> wrote:





"John Martin" wrote

So.. my answer is "No, they ain't ment to be used in a drill."

(For reference, I was using a Rockler steel - not carbon - forstner
bit.)

Jason Buckler
They're not meant to be used in a hand-held drill only because there
is no central point to locate the bit. If you don't hold them
perfectly straight - and sometimes even if you do - they can skate all
over the workpiece.

Then your not talking about a "Forstner" bit ... proper Forstner bits
indeed
have a point, which is called the "gimlet point", as named by the man who
invented the bit.

--www.e-woodshop.net
Last update: 5/14/08
KarlC@ (the obvious)
Oh, I most definitely am.  The Forstners I use are almost all by

Don't be so naive.  Just because someone calls/sells a bit as a "forstner",
does not make it so.

Once again, a true "Forstner" bit, BY DESIGN, has a point to guide the
center of the initial drilling. This is an inarguable FACT, deal with it.

--www.e-woodshop.net
Last update: 5/14/08
KarlC@ (the obvious)- Hide quoted text -

- Show quoted text -

"Just because someone calls/sells a bit as a "forstner", does not make
it so." I agree, but then I am so naive. If you bother re-reading my
post, however, you'll see that the companies I mentioned were making
Forstner bits well over 100 years ago, under license from Benjamin
Forstner - the inventor. That's not a Forstner bit?

Someone else has already posted a link to Benjamin Forstner's patent -
# 115148, dated August 15, 1874. Rather than make you search for it,
though, here is a quote from it:

"The circular band serves to guide the bit accurately in its movement,
and also give the hole that is bored a smooth and perfect finish. By
its employment the gimlet-point may be dispensed with, and as the
cutting lips do not project beyond its horizontal plane, it follows
that the wood is not cut beyond the line operated upon by the circular
cutting-edge of the band."

And that, Swingman, is an inarguable FACT, with which you must deal.

John Martin
.