ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
there a extension one can buy to achieve a longer drill depth? We are
building a pocker chip holder and our bits are only about 2.5" long and we
want more on the order of 4.25 inch drill outs. And we can maintain enouch
accuracy to drill from two ends and have the shafts meet properly.
Any points to a url to buy would be appreciated.
Thank you
Robert
Terry King wrote:
>
> I need to drill about 100 2" to 2 1/4" holes, 2" deep, in the
> post&beam barn I'm building. The 'wandering' is a definite problem...
Hey - aren't you supposed to do that kind of drilling with a bit and brace?
We're not cheating here, are we?
--
-Mike-
[email protected]
On Thu, 20 May 2004 15:39:51 GMT, "Spenzdad" <[email protected]> wrote:
|ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
|there a extension one can buy to achieve a longer drill depth? We are
|building a pocker chip holder and our bits are only about 2.5" long and we
|want more on the order of 4.25 inch drill outs. And we can maintain enouch
|accuracy to drill from two ends and have the shafts meet properly.
|
|Any points to a url to buy would be appreciated.
http://shop.woodcraft.com/Woodcraft/product_family.asp?family%5Fid=788&gift=False&mscssid=30E6BEC1282C407FAFFEB738F1DFADF8
|
|Thank you
|Robert
|
My Milwaukee pipe size bits have a reversible/replaceable self feed screw
center held with a setscrew. Sure takes the strain out of overhead side
drilling. They also have an extension in the kit. (1/2 to 3 inch pipe
clearance sizes.) I have had a Milwaukee right angle drill for over 30
years, still chugging along. ( On the third armature.... ) ( The plumbers'
model is geared a little tighter than an electricians' model.) Seen some
singles of another brand at a plumbing supply house just yesterday. Same
type of center pilot.
--
Chipper Wood
useours, yours won't work
"Terry King" <[email protected]> wrote in message
news:[email protected]...
> > > ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or
is
> > > there a extension one can buy to achieve a longer drill depth?
>
> Related question: Accurately guiding Forstner bits... The typical V
> shaped center point doesn't do much. A predrilled pilot hole helps
> somewhat.
>
> Anyone seen (or modified) a Forstner type bit with a long guide bit or
> pin?
>
> With hole saws the bit is usually removeable, and a smooth guide shaft
> can be used in predrilled guide holes for better accuracy. Wish I could
> do that with Forstner bits.
>
> I need to drill about 100 2" to 2 1/4" holes, 2" deep, in the post&beam
> barn I'm building. The 'wandering' is a definite problem...
>
> --
> Regards, Terry King ...In The Woods In Vermont
> [email protected]
> Capturing Live Music in Sound and Images
> http://www.terryking.us
"Spenzdad" <[email protected]> wrote in message
news:[email protected]...
> ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
> there a extension one can buy to achieve a longer drill depth? We are
> building a pocker chip holder and our bits are only about 2.5" long and we
> want more on the order of 4.25 inch drill outs. And we can maintain
enouch
> accuracy to drill from two ends and have the shafts meet properly.
>
> Any points to a url to buy would be appreciated.
>
> Thank you
> Robert
>
>
It is easy enough to make an extension. Your bit probably has a 3/8" shank,
if so, get some of the same diamater drill rod and some steel tubing (1/2"
OD 3/8" ID), use a high strength Loctite shaft lock to glue the bit, drill
rod and piece of tubing together.
It is very unlikely that you can get a perfect result if you drill from both
sides. If you drill a pilot hole that will help, small diamater extra long
drill bits are available from companys like Enco (use-enco.com) or McMaster
Carr, but I doubt the results would be perfect, maybe good enough to be
cleaned up on an oscillating drum sander.
Bernard R
>
>ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
>there a extension one can buy to achieve a longer drill depth? We are
>building a pocker chip holder and our bits are only about 2.5" long and we
>want more on the order of 4.25 inch drill outs. And we can maintain enouch
>accuracy to drill from two ends and have the shafts meet properly.
>
>Any points to a url to buy would be appreciated.
>
>Thank you
>Robert
>
>
Do a search for Connecticut Valley Manufacturing (Convalco), the original
makers of Forstner bits.
John Martin
Look at Lee Valley. I don't recall if they have an extension but their
Forstner bits have longer shafts than many. I have an extension made by
Milwaukee that would work also.
RB
Spenzdad wrote:
> ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
> there a extension one can buy to achieve a longer drill depth? We are
> building a pocker chip holder and our bits are only about 2.5" long and we
> want more on the order of 4.25 inch drill outs. And we can maintain enouch
> accuracy to drill from two ends and have the shafts meet properly.
>
> Any points to a url to buy would be appreciated.
>
> Thank you
> Robert
>
>
In article <[email protected]>,
Terry King <[email protected]> wrote:
>> > ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
>> > there a extension one can buy to achieve a longer drill depth?
>
>Related question: Accurately guiding Forstner bits... The typical V
>shaped center point doesn't do much. A predrilled pilot hole helps
>somewhat.
>
>Anyone seen (or modified) a Forstner type bit with a long guide bit or
>pin?
>
>With hole saws the bit is usually removeable, and a smooth guide shaft
>can be used in predrilled guide holes for better accuracy. Wish I could
>do that with Forstner bits.
>
>I need to drill about 100 2" to 2 1/4" holes, 2" deep, in the post&beam
>barn I'm building. The 'wandering' is a definite problem...
A Forstner bit is the wrong tool for that application.
The right animal is an 'auger bit'. Either used in a 'brace' (the
big, old, U-shaped people-powered hand drill. Or get a Milwaukee
"Hole Hawg" ('accept no substitutes' applies). To use large-diameter
auger bits in a power drill, you need *lots* of power at _low_ RPMs.
For power drilling with a 2-1/2" dia drill, you want to use less than 1/10
the RPMS you would use with a 1/4" bit. i.e., somewhere in the _one_hundred_
RPM range.
http://www.mlcswoodworking.com/shopsite_sc/store/html/smarthtml/pages/forsext.htm
Spenzdad wrote:
> ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
> there a extension one can buy to achieve a longer drill depth? We are
> building a pocker chip holder and our bits are only about 2.5" long and we
> want more on the order of 4.25 inch drill outs. And we can maintain enouch
> accuracy to drill from two ends and have the shafts meet properly.
thanks all...that was a great help!
"Spenzdad" <[email protected]> wrote in message
news:[email protected]...
> ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
> there a extension one can buy to achieve a longer drill depth? We are
> building a pocker chip holder and our bits are only about 2.5" long and we
> want more on the order of 4.25 inch drill outs. And we can maintain
enouch
> accuracy to drill from two ends and have the shafts meet properly.
>
> Any points to a url to buy would be appreciated.
>
> Thank you
> Robert
>
>
maybe...what is a bit and brace? Why is drilling with fortsner a 3.4" hole
a problem?
Thanks
"Mike Marlow" <[email protected]> wrote in message
news:[email protected]...
> Terry King wrote:
> >
> > I need to drill about 100 2" to 2 1/4" holes, 2" deep, in the
> > post&beam barn I'm building. The 'wandering' is a definite problem...
>
> Hey - aren't you supposed to do that kind of drilling with a bit and
brace?
> We're not cheating here, are we?
> --
>
> -Mike-
> [email protected]
>
>
> > ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
> > there a extension one can buy to achieve a longer drill depth?
Related question: Accurately guiding Forstner bits... The typical V
shaped center point doesn't do much. A predrilled pilot hole helps
somewhat.
Anyone seen (or modified) a Forstner type bit with a long guide bit or
pin?
With hole saws the bit is usually removeable, and a smooth guide shaft
can be used in predrilled guide holes for better accuracy. Wish I could
do that with Forstner bits.
I need to drill about 100 2" to 2 1/4" holes, 2" deep, in the post&beam
barn I'm building. The 'wandering' is a definite problem...
--
Regards, Terry King ...In The Woods In Vermont
[email protected]
Capturing Live Music in Sound and Images
http://www.terryking.us
> >Anyone seen (or modified) a Forstner type bit with a long guide bit or
> >pin?
Thanks for the several suggestions...
I haven't seen auger type bits in sizes up over 2". I'll look. They do
tend to guide well. I use them for the deep holes (8 inch timber etc)
but only in 1/2" and 3/4" .
A boring machine is very cool, but this is the "ShoeString Post and Beam"
(tm) job on local lumber. I'd like a chain mortiser, too! But these
tools are in the $1000 range.
Pardon the blasphemy, but I've got my old Sears Skilsaw, my newer Bosch
Router and Jigsaw, and another $200 in Harbor Freight electric chainsaw
and slow 1/2" drill. I've built several jigs and fixtures to guide the
chainsaw to make decent cuts in 8x8 to 8x12 timbers. After roughing
mortises with the big Forstner bits, skilsaw and chisel, the Router
finishes them precisely to size.
I love good tools, but sometimes you gotta do with what you can afford.
--
Regards, Terry King ...In The Woods In Vermont
[email protected]
Capturing Live Music in Sound and Images
http://www.terryking.us
Spenzdad wrote:
> maybe...what is a bit and brace? Why is drilling with fortsner a
> 3.4" hole a problem?
Bit and Brace are the old manual way of drilling. The bit is typically an
auger type wood bit and the brace is the old U shaped hand "drill". Was
just teasing you about doing an old school woodworking technique with modern
day tools.
--
-Mike-
[email protected]
>
> Thanks
> "Mike Marlow" <[email protected]> wrote in message
> news:[email protected]...
>> Terry King wrote:
>>>
>>> I need to drill about 100 2" to 2 1/4" holes, 2" deep, in the
>>> post&beam barn I'm building. The 'wandering' is a definite
>>> problem...
>>
>> Hey - aren't you supposed to do that kind of drilling with a bit and
>> brace? We're not cheating here, are we?
>> --
>>
>> -Mike-
>> [email protected]
home depot has extensions for drills on the order of feet. used to drill
holes in walls for wiring.
"Spenzdad" <[email protected]> wrote in message
news:[email protected]...
> ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
> there a extension one can buy to achieve a longer drill depth? We are
> building a pocker chip holder and our bits are only about 2.5" long and we
> want more on the order of 4.25 inch drill outs. And we can maintain
enouch
> accuracy to drill from two ends and have the shafts meet properly.
>
> Any points to a url to buy would be appreciated.
>
> Thank you
> Robert
>
>
You need a boring machine. Very fast for timber frames.
You can find them on Ebay sometimes. A good one
is expensive. Miller Falls is the best but hard to find.
On Thu, 20 May 2004 17:13:15 -0400, Terry King <[email protected]>
wrote:
>> > ARe there 1.5" dia Forsner bits with say a 6 or 8" long shaft.......or is
>> > there a extension one can buy to achieve a longer drill depth?
>
>Related question: Accurately guiding Forstner bits... The typical V
>shaped center point doesn't do much. A predrilled pilot hole helps
>somewhat.
>
>Anyone seen (or modified) a Forstner type bit with a long guide bit or
>pin?
>
>With hole saws the bit is usually removeable, and a smooth guide shaft
>can be used in predrilled guide holes for better accuracy. Wish I could
>do that with Forstner bits.
>
>I need to drill about 100 2" to 2 1/4" holes, 2" deep, in the post&beam
>barn I'm building. The 'wandering' is a definite problem...
On Fri, 21 May 2004 23:56:10 -0400, Terry King <[email protected]>
wrote:
>> >Anyone seen (or modified) a Forstner type bit with a long guide bit or
>> >pin?
>
>Thanks for the several suggestions...
>
>I haven't seen auger type bits in sizes up over 2". I'll look. They do
>tend to guide well. I use them for the deep holes (8 inch timber etc)
>but only in 1/2" and 3/4" .
>
>A boring machine is very cool, but this is the "ShoeString Post and Beam"
>(tm) job on local lumber. I'd like a chain mortiser, too! But these
>tools are in the $1000 range.
>
>Pardon the blasphemy, but I've got my old Sears Skilsaw, my newer Bosch
>Router and Jigsaw, and another $200 in Harbor Freight electric chainsaw
>and slow 1/2" drill. I've built several jigs and fixtures to guide the
>chainsaw to make decent cuts in 8x8 to 8x12 timbers. After roughing
>mortises with the big Forstner bits, skilsaw and chisel, the Router
>finishes them precisely to size.
>
>I love good tools, but sometimes you gotta do with what you can afford.
there's nothing like a big 'ol chisel and mallet for chopping
mortises...