I need to drill a hole 1" in diameter through a 3" X 3" X 10" piece.
It has to be close to center and 10" long. All my 1" bits are 5" or
less in length. I know, I can drill it half way, then turn it over
and drill it again, but I'd like to do it in one pass. I've got 20 or
30 of these to drill at the same time.
On Jun 28, 2:22=A0am, billw <[email protected]> wrote:
> I need to drill a hole 1" in diameter through a 3" X 3" X 10" =A0piece.
> It has to be close to center and 10" long.
As others have said, a ship's auger (just a very long
auger bit) can do it. You'll want to turn the bit slowly, compared
to twist-drill speeds.
Is this a hole into end grain?
End grain won't feed very well, it might benefit from
a hard push... maybe turn the work in a lathe
and push in the auger by sliding the endstock?
"billw" wrote:
>I need to drill a hole 1" in diameter through a 3" X 3" X 10" piece.
> It has to be close to center and 10" long.
<snip>
------------------------------------
Classic application for a ship's auger.
Standard lengths are 12" & 18".
http://tinyurl.com/26vfbbx
Will get you to Jamestown Distributors.
Lew
In article <[email protected]>,
"J. Clarke" <[email protected]> wrote:
> On 6/29/2010 2:10 AM, Lew Hodgett wrote:
> > "Lobby Dosser" wrote:
> >
> >>
> >> http://www.tool-sale.com/neiko-model-10161-wood-boring-bit-set-p-1567.html
> >>
> >> http://www.tool-sale.com/long-black-gold-inch-drill-bit-shank-p-5421.html
> >
> > --------------------------------
> > Neither of which will track worth a hoot to drill a hole centered in
> > the piece.
>
> Depends on how "centered" it needs to be. Centered enough to take a
> close sliding fit shaft, no, close enough to pass a cord through, yes.
>
> The requirement was for "close to center", not centered to NASA tolerances.
Straw man.
The outside dimensions for the concrete foundations for Pad 39 were
poured to ± 1" NASA tolerance. Not too shabby for a 390 ft hex.
On Mon, 28 Jun 2010 05:22:22 -0400, billw <[email protected]> wrote:
>I need to drill a hole 1" in diameter through a 3" X 3" X 10" piece.
>It has to be close to center and 10" long. All my 1" bits are 5" or
>less in length. I know, I can drill it half way, then turn it over
>and drill it again, but I'd like to do it in one pass. I've got 20 or
>30 of these to drill at the same time.
Drill bit extension? Part No. 33J04.45
http://www.leevalley.com/en/wood/page.aspx?p=62137&cat=1,180,42240,45534,42240
Auger drill?
http://www.leevalley.com/en/wood/page.aspx?p=45003&cat=1,180,42240
On 6/28/2010 5:22 AM, billw wrote:
> I need to drill a hole 1" in diameter through a 3" X 3" X 10" piece.
> It has to be close to center and 10" long. All my 1" bits are 5" or
> less in length. I know, I can drill it half way, then turn it over
> and drill it again, but I'd like to do it in one pass. I've got 20 or
> 30 of these to drill at the same time.
You can get spade and augur bits long enough to do what you need, or you
can use an extension on one of your regular bits. If you take a look in
the drill bit section at Home Depot or Lowes you'll probably find
something suitable, if not then check <http://www.mcmaster.com> and
you'll find a variety of options.
"billw" <[email protected]> wrote in message
news:[email protected]...
>I need to drill a hole 1" in diameter through a 3" X 3" X 10" piece.
> It has to be close to center and 10" long. All my 1" bits are 5" or
> less in length. I know, I can drill it half way, then turn it over
> and drill it again, but I'd like to do it in one pass. I've got 20 or
> 30 of these to drill at the same time.
http://www.tool-sale.com/neiko-model-10161-wood-boring-bit-set-p-1567.html
http://www.tool-sale.com/long-black-gold-inch-drill-bit-shank-p-5421.html
"Lew Hodgett" <[email protected]> wrote in message
news:[email protected]...
>
> "Lobby Dosser" wrote:
>
>>
>> http://www.tool-sale.com/neiko-model-10161-wood-boring-bit-set-p-1567.html
>>
>> http://www.tool-sale.com/long-black-gold-inch-drill-bit-shank-p-5421.html
>
> --------------------------------
> Neither of which will track worth a hoot to drill a hole centered in the
> piece.
>
> Lew
>
>
Really? I've done it on a couple lamps. No problem. Guess it depends on the
chuck and DP.
On 6/29/2010 2:10 AM, Lew Hodgett wrote:
> "Lobby Dosser" wrote:
>
>>
>> http://www.tool-sale.com/neiko-model-10161-wood-boring-bit-set-p-1567.html
>>
>> http://www.tool-sale.com/long-black-gold-inch-drill-bit-shank-p-5421.html
>
> --------------------------------
> Neither of which will track worth a hoot to drill a hole centered in
> the piece.
Depends on how "centered" it needs to be. Centered enough to take a
close sliding fit shaft, no, close enough to pass a cord through, yes.
The requirement was for "close to center", not centered to NASA tolerances.
On Mon, 28 Jun 2010 04:19:25 -0700, "Lew Hodgett"
<[email protected]> wrote the following:
>
>"billw" wrote:
>
>>I need to drill a hole 1" in diameter through a 3" X 3" X 10" piece.
>> It has to be close to center and 10" long.
><snip>
>------------------------------------
>Classic application for a ship's auger.
>
>Standard lengths are 12" & 18".
>
>http://tinyurl.com/26vfbbx
>
>Will get you to Jamestown Distributors.
Too bad he didn't say he needed a 3/4" bit. A set of these set me back
$12 on sale, and they've been put to good use occasionally.
http://www.harborfreight.com/3-piece-18-inch-auger-bit-set-93892.html
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