pdp1@EARTHLINK.NET on fri 8 aug 03
Hi Vince,
You are thinking of something else...if you make an
in-effect Drill Bit out of a diamolnd nose sharpening of
some All-Thread, it is not a Spade Bit.
A Spade Bit has usually a 1/4 inch shank, and has for it's
end, a flat, wider, centrally-pointed 'spade' end, kind of
like a Shovel...flat and wide...
Unless you forge the end of your All-Thread to be flat and
wide at the drilling end, it may not be a Spade Bit, but is
merely a pointed rod...
...best!
Phil
Las Vegas
----- Original Message -----
From: "Vince Pitelka"
I get
> very clean, precise holes, and as I said, if I make the
spade bit from a
> piece of allthread, I can use the threaded shaft like a
file, to carve out
> the hole to the desired size and shape.
> Best wishes -
> - Vince
Vince Pitelka on sun 10 aug 03
> You are thinking of something else...if you make an
> in-effect Drill Bit out of a diamolnd nose sharpening of
> some All-Thread, it is not a Spade Bit.
Phil -
Semantics. I do more than make a pointed rod. I grind the all-thread to a
chisel-tip, and then grind off the two sides so that the tip and cutting
surfaces really are like those on a spade bit. It is self-centering, and
doesn't wander on the surface at all. It doesn't have the broad surface of
a spade bit, but for all practical purposes, it is a spade bit.
Best wishes -
- Vince
Vince Pitelka
Appalachian Center for Craft
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Office - wpitelka@tntech.edu
615/597-6801 x111, FAX 615/597-6803
http://iweb.tntech.edu/wpitelka/
pdp1@EARTHLINK.NET on sun 10 aug 03
Hi Vince!
Ohhhhhhhkay...gotcha, now I understand...before, all I knew
was yu doing the 'chisel-point' on the end...clearer now,
and a 'Spade' of sorts it indeed is!
Best wishes!
Happy drilling!
Phil
Las Vegas
----- Original Message -----
From: "Vince Pitelka"
To:
Sent: Saturday, August 09, 2003 10:01 PM
Subject: Re: drilling in brick - and what a Spade Bit is...
> > You are thinking of something else...if you make an
> > in-effect Drill Bit out of a diamolnd nose sharpening of
> > some All-Thread, it is not a Spade Bit.
>
> Phil -
> Semantics. I do more than make a pointed rod. I grind
the all-thread to a
> chisel-tip, and then grind off the two sides so that the
tip and cutting
> surfaces really are like those on a spade bit. It is
self-centering, and
> doesn't wander on the surface at all. It doesn't have the
broad surface of
> a spade bit, but for all practical purposes, it is a spade
bit.
> Best wishes -
> - Vince
>
> Vince Pitelka
> Appalachian Center for Craft
> Tennessee Technological University
> 1560 Craft Center Drive, Smithville TN 37166
> Home - vpitelka@dtccom.net
> 615/597-5376
> Office - wpitelka@tntech.edu
> 615/597-6801 x111, FAX 615/597-6803
> http://iweb.tntech.edu/wpitelka/
>
>
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