Air Drills

Actually there is a 3/32, 1/8, 1/4? set of collets available from
Princess Auto that seem to work fine with #30 and #40 bits in their
cheap 90 degree die grinder. It gets into tighter places that way than
it could with a chuck. I find that it turns too fast though and needs a
steady hand or it will cut sideways like a router ;( It will make a
hole real quick though if you don't have anything else that can get
access to where you are working
Ken

I have an ancient direct-drive air drill I found at a Princess
Auto here in Canada. No gears in it, and it turns at some insane speed
like an air die-grinder, maybe 15 or 20,000 RPM. It sure does a nice
job on small holes in aluminum, very little tendency to skid.
I wonder if it might be worthwhile to make a threaded adapter for a
1/4" chuck and clamp it into the collet of a 90-degree die grinder? Or
are there any pistol-grip die grinders?

Dan

"acepilot" wrote in message
...
I have a 60 gallon upright air compressor and it seems to run the
air
drill fine. I've never seen an electric drill that turned RPMs in
the
thousands.

I have an electric drill that runs at 3000, great for drilling 1/8
but not that good for under that size. It's home made, used the motor
out of a B&D lawnmower, it used the same caseing as one of the small
B&D's but with a higher gear ratio.
--
---
Cheers,
Jonathan Lowe.
/
don't bother me with insignificiant nonsence such as spelling,
I don't care if it spelt properly
/
Sometimes I fly and sometimes I just dream about it.
:-)


My Makita cordless at work might do a few HUNDRED RPM. When




I bought my Sioux, it was the highest speed air drill I found at an
aviation tool supply. Oh well, that's life...

Scott


Veeduber wrote:
I love my Sioux drill. Great trigger. Mine only goes 2600 RPM.
Seems
to do just fine at that speed.


-------------------------------------------------

Dear Scott,

I don' t want to bust up your romance but I suggest you borrow a
drill-motor
that turns at a higher speed and shoot a few holes. You really
don't know what
you're missing.

I usta have a B&D 'aviation' drill motor, turned something like
4000 rpm. Wore
it out. Had it rebuilt. Twenty years later it needed another
rebuild but the
bull-gear was not available at a price I could afford. Since
then I've been
using those cheap Chinee imports that turn 3600 rpm, last just
about long
enough for one airplane's-worth of holes, throw it away when it
gets noisy.
Air tools are nice but compressing air to drive a drill puts you
on the wrong
side of the economic equation here in southern California.

That's a point a lot of newbies miss. Pneumatic drill is a real
air hog; takes
a pretty good compresser to keep you working. (On the other
hand, pneumatic
riveting hammers or squeezers don't use much air.) If a guy
doesn't already
have a big compressor, when you add the acquisition cost to the
operating cost
and divide by the number of holes, it represents a significant
increase in cost
when compared to using throw-away electric drill motors.

-R.S.Hoover

On Sun, 7 Mar 2004 00:18:18 -0000, "Model Flyer"
wrote:


"acepilot" wrote in message
...
I have a 60 gallon upright air compressor and it seems to run the
air
drill fine. I've never seen an electric drill that turned RPMs in
the
thousands.

I have an electric drill that runs at 3000, great for drilling 1/8
but not that good for under that size. It's home made, used the motor

Why would you want to run a drill bit that fast?

I normally use less than half that speed even for the tiny ones.
Although I have a number of air tools, I learned to hate that sound
after working on an assembly line in my younger days.


Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com
out of a B&D lawnmower, it used the same caseing as one of the small
B&D's but with a higher gear ratio.

In Roger Halstead wrote:
On Sun, 7 Mar 2004 00:18:18 -0000, "Model Flyer"
wrote:

I have an electric drill that runs at 3000, great for drilling 1/8
but not that good for under that size. It's home made, used the motor

Why would you want to run a drill bit that fast?

I normally use less than half that speed even for the tiny ones.
Although I have a number of air tools, I learned to hate that sound
after working on an assembly line in my younger days.

Because they work better at the higher speeds.

----------------------------------------------------
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Unofficial Bearhawk FAQ website:
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