Anyone know if there is such a thing? Looking for a way to drill through 6"
of wood with a 3" diameter spade drill... Have the machine to drive it, but
don't have the tooling.

Secondary question - Any idea how much HP a bit like that requires?

Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R

Joe AutoDrill wrote:
Anyone know if there is such a thing? Looking for a way to drill through 6"
of wood with a 3" diameter spade drill... Have the machine to drive it, but
don't have the tooling.

Don't think you'll find a spade bit much over 2"...can't imagine the
"whap" that a 3-incher would cause...

For 3" hole your choice is adjustable, Forstner (or toothed Forstner,
better) or hole saw (assuming you can get to both sides).


Secondary question - Any idea how much HP a bit like that requires?

What kind of wood?

Joe AutoDrill wrote:
Anyone know if there is such a thing? Looking for a way to drill through 6"
of wood with a 3" diameter spade drill... Have the machine to drive it, but
don't have the tooling.

Secondary question - Any idea how much HP a bit like that requires?

Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R


you'll probably end up with something like this:
http://www.whitecapdirect.com/store/worker?request=GetProduct&productID=13148253001&de stination=%2Fstore%2Fproduct-v2.0.jsp&from=drilldown
or:
http://tinyurl.com/r4tdg

the horsepower requirements aren't too high with a self-feeding bit. a
good strong slow speed 6amp 1/2" drill motor should be fine.

this will make a somewhat rough sided hole, appropriate for fitting
plumbing through framing members. if you need a cleaner hole you might
look at fly cutters.

Joe AutoDrill wrote:
Anyone know if there is such a thing? Looking for a way to drill through 6"
of wood with a 3" diameter spade drill... Have the machine to drive it, but
don't have the tooling.

There are 3" sawtooth bits available in both high speed steel and high
carbon steel at
http://www.leevalley.com/wood/page.a...at=1,180,42240
good luck,
Andy

Don't think you'll find a spade bit much over 2"...can't imagine the
"whap" that a 3-incher would cause...

For 3" hole your choice is adjustable, Forstner (or toothed Forstner,
better) or hole saw (assuming you can get to both sides).

Hole saw is no good. This is being used on an automatic drilling machine
(see my web site if you wish...) and the plug created by the hole saw
doesn't eject.

What kind of wood?

Laminated ply.

Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R

Joe AutoDrill wrote:
Anyone know if there is such a thing? Looking for a way to drill
through 6" of wood with a 3" diameter spade drill... Have the
machine to drive it, but don't have the tooling.

Secondary question - Any idea how much HP a bit like that requires?


http://tinyurl.com/rmtml

you'll probably end up with something like this:
http://www.whitecapdirect.com/store/worker?request=GetProduct&productID=13148253001&de stination=%2Fstore%2Fproduct-v2.0.jsp&from=drilldown
or:
http://tinyurl.com/r4tdg

Good lead. Thank you.
--


Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R

Joe AutoDrill wrote:

Good lead. Thank you.
--


you're welcome.
the self-feed may be problematic on automatic machinery. if so, the
threaded center spurr can be removed and replaced with a smooth point
or a center drill.

these are made by a number of manufacturers. the name of this general
configuration of drill bit is planetor. use that term in a google
search and you'll get plenty of hits.

Joe AutoDrill wrote:
Anyone know if there is such a thing? Looking for a way to drill
through 6"
of wood with a 3" diameter spade drill... Have the machine to
drive it, but
don't have the tooling.

Secondary question - Any idea how much HP a bit like that requires?

Milwaukee speed bit.

About $100.

Try Grainger.

Lew

you're welcome.
the self-feed may be problematic on automatic machinery. if so, the
threaded center spurr can be removed and replaced with a smooth point
or a center drill.

these are made by a number of manufacturers. the name of this general
configuration of drill bit is planetor. use that term in a google
search and you'll get plenty of hits.

We provide constant thrust, not constant feed. In real simple terms, it's
similar to putting 50# of weights on the arm of a drill press. If the bit
hits something hard, it simply places pressure on the workpiece via the bit
and then feeds at whatever rate it can. We provide anywhere from 50 lbs. to
750 lbs. of thrust... In this case, closer to 300 I'd guess to take a
controlled cut.

Looks like a very good solution. I'm a bit worried about the RPM and HP
needed, but we can determine that with a simple test on my drill press.

Again, thank you. Very helpful.

Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R

Joe AutoDrill wrote:

Anyone know if there is such a thing? Looking for a way to drill through 6"
of wood with a 3" diameter spade drill... Have the machine to drive it, but
don't have the tooling.

Secondary question - Any idea how much HP a bit like that requires?

Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R





I've got a 3" high speed steel drill bit around here somewhere.
Unfortunately, the only thing I know it chucks into is a lathe that used
to be on an aircraft carrier. It has a tapered shaft.

I've got a 3" high speed steel drill bit around here somewhere.
Unfortunately, the only thing I know it chucks into is a lathe that used
to be on an aircraft carrier. It has a tapered shaft.

Almost every "standard" 3" bit has a morse taper drive - not useable for me
yet. Give me a year.
--


Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R

In article InRsg.3705$wZ.1403@trndny01, says...
Anyone know if there is such a thing? Looking for a way to drill through 6"
of wood with a 3" diameter spade drill... Have the machine to drive it, but
don't have the tooling.

Secondary question - Any idea how much HP a bit like that requires?


http://www.timbecon.com.au/products/...its-367_0.aspx

that should give you an idea of what is being made, even if it's not local to
you :-) I see they have 3" bits in their catalogue.

Forget about a 3" spade bit, there are too many things that could go wrong that
could cost people an eye or a digit. You need a bit shaped more or less like a
Fostner bit that has a cylindrical front end that uses the hole as a guide with
the sides of the hole absorbing any sideways forces. Toothed bits cut less
clean, b.t.w. but they are faster.

-P.

--
=========================================
firstname dot lastname at gmail fullstop com

"Joe AutoDrill" wrote in message
news:InRsg.3705$wZ.1403@trndny01...
Anyone know if there is such a thing? Looking for a way to drill through
6" of wood with a 3" diameter spade drill... Have the machine to drive
it, but don't have the tooling.

How about a 3" holesaw from each side after going right thru with a pilot
bit

How about a 3" holesaw from each side after going right thru with a pilot
bit

No can do. It's an automated process. No end-user input other than a push
of a start button. Thus, it either has to automatically eject the plug from
inside the hole saw or not create a plug to begin with.
--


Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R

In addition, provided one has a pilot hole right through, it doesn't
matter
how short the hole saw is. It's just a matter of breaking off what's been
cut with the edge of a screwdriver or something and drilling some more.

As I answered a few other folks, that would be nice, but can't be done.
It's an automated process. Either the plug has to eject automatically from
the hole saw or there has to be no plug created. The end user needs to be
able to push a start button, watch the process, remove the wood part being
drilled, load a new part and press the start button again. I do everything
along the line except find tooling normally, so that is where my conflict
comes in. I'm simply not finding a tool that does this for wood. We have
Hougen for metal that positively ejects hole-saw plugs and Starrett makes
one for 76MM or 3" in diameter that incorporates a spring, but for this
depth, they don't work. Thus, my search for a spade drill initially as it
does not create a plug.

Check out my site below (AutoDrill) to see what type of machine is
performing the process if you want.

Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R

They are readily available for drilling metal. The geometry would be just
fine for wood though, in sizes this large, you are unlikely to find anything
in strait shank. Spade drills are easily made by any competent toolmaker. If
you can afford it, that may be your only option.
"Joe AutoDrill" wrote in message
news:dE5tg.2925$ZI2.2835@trndny06...
How about a 3" holesaw from each side after going right thru with a
pilot
bit

No can do. It's an automated process. No end-user input other than a
push
of a start button. Thus, it either has to automatically eject the plug
from
inside the hole saw or not create a plug to begin with.
--


Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R

Joe AutoDrill wrote:
How about a 3" holesaw from each side after going right thru with a pilot
bit

No can do. It's an automated process. No end-user input other than a push
of a start button. Thus, it either has to automatically eject the plug from
inside the hole saw or not create a plug to begin with.
--


Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com

V8013-R


Check one of the woodworking bit manufacturers such as Forest City or
Morris Wood. You'll find spur bits to 3" and larger, steel or carbide,
made for production use.

John Martin