high speed drill

mike.davis · Post by **mike.davis** » Fri Feb 17, 2012 11:02 pm

The drill I am looking at getting is 2800 RPM... but that's the fastest I've
found for a "reasonably" priced one... I saw a couple at 3200 and 3600 at over
3 times the price. The 13,000 - 17,000 rpm drill is only $85 from Aircraft
Spruce... just doesn't seem right.

Mike

On 5/19/2003 8:46 PM, MURPHY-REBEL@DCSOL.COM wrote to MIKE DAVIS:

-> Hi Mike !
->
-> I think the 'cleaner hole' thing was based on local experiences
-> with 6,000 rpm air drills - that being a 'standard' (???) speed that
-> was readily available ....
->
-> 13,000 - 17,000 rpm !!!! Wooooow !!! Sounds like a
-> screamer !!
->
-> Only cautionary note I've heard about the faster drills -
-> "They're fast & light, and do produce a clean hole, BUT ......
-> they make a GREAT ROUTER if you're not VERY careful, and quick with
-> the OFF button !" ;-) ;-^) :-) ;-)
->
-> Might be very handy for oval holes - like skylights !! ;-^)
->
-> .....bobp
->
-> -------------------------------orig.---------------------------------
-> At 05:01 PM 5/19/03 -0800, you wrote:
-> >In the past it has been discussed that the faster your drill, the cleaner
-> >the holes, and the easier it is to debur. Well has anybody used the
-> >"pneumatic high speed drill" that Aircraft Spruce is offering with
operating
-> >speeds of 13,000 - 17,000 RPM. Check it out here:
-> >
-> >http://www.aircraftspruce.com/catalog/t ... tdrill.php
-> >
-> >The drill I was looking at runs at 2800 RPM, but then I stumbled across the
-> >one above... I would imagine that it doesn't have much torque, but thought
-> >it was worth looking at. I built my stab just using my electric drill
(2500
-> >RPM), but it gets aweful heavy after a while. Now with father's day coming
-> >up, a nice pneumatic drill is just the ticket for a present from my family.
-> >
-> >Thanks, Mike

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Bob Patterson · Post by **Bob Patterson** » Fri Feb 17, 2012 11:02 pm

Hi Mike !

I think the 'cleaner hole' thing was based on local experiences
with 6,000 rpm air drills - that being a 'standard' (???) speed that
was readily available ....

13,000 - 17,000 rpm !!!! Wooooow !!! Sounds like a
screamer !!

Only cautionary note I've heard about the faster drills -
"They're fast & light, and do produce a clean hole, BUT ......
they make a GREAT ROUTER if you're not VERY careful, and quick with
the OFF button !" ;-) ;-^) :-) ;-)

Might be very handy for oval holes - like skylights !! ;-^)

.....bobp

-------------------------------orig.---------------------------------
At 05:01 PM 5/19/03 -0800, you wrote:

In the past it has been discussed that the faster your drill, the cleaner
the holes, and the easier it is to debur. Well has anybody used the
"pneumatic high speed drill" that Aircraft Spruce is offering with operating
speeds of 13,000 - 17,000 RPM. Check it out here:

http://www.aircraftspruce.com/catalog/t ... tdrill.php

The drill I was looking at runs at 2800 RPM, but then I stumbled across the
one above... I would imagine that it doesn't have much torque, but thought
it was worth looking at. I built my stab just using my electric drill (2500
RPM), but it gets aweful heavy after a while. Now with father's day coming
up, a nice pneumatic drill is just the ticket for a present from my family.

Thanks, Mike

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Mike Davis · Post by **Mike Davis** » Fri Feb 17, 2012 11:02 pm

In the past it has been discussed that the faster your drill, the cleaner
the holes, and the easier it is to debur. Well has anybody used the
"pneumatic high speed drill" that Aircraft Spruce is offering with operating
speeds of 13,000 - 17,000 RPM. Check it out here:

http://www.aircraftspruce.com/catalog/t ... tdrill.php

The drill I was looking at runs at 2800 RPM, but then I stumbled across the
one above... I would imagine that it doesn't have much torque, but thought
it was worth looking at. I built my stab just using my electric drill (2500
RPM), but it gets aweful heavy after a while. Now with father's day coming
up, a nice pneumatic drill is just the ticket for a present from my family.

Thanks, Mike

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Nielsenbe · Post by **Nielsenbe** » Fri Feb 17, 2012 11:02 pm

I have a 18000 rpm drill......... wait they call it a rotozip. I think bobp
is right about the router theory. I am not sure you could keep an edge on a
bit turning that fast either. good luck.

Brad

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Gordon Mohr · Post by **Gordon Mohr** » Fri Feb 17, 2012 11:02 pm

The air turbine in an air tool spins around 20,000 rpm or more. The
difference in the output only depends on the gearing, usually a
planetary gear. I turned my 2500 rpm air drill into a 12,000 rpm drill
by locking the planetary. It sucked. No torque, and if the drill bit
doesn't start clean, it will "chatter" causing a ragged elongated hole.
I use a 2500 RPM skil or dewalt drill for 1/8" holes. It's quite light
and doesn't freeze your hand off like an air drill after a few dozen
holes. Also, dragging a heavy air hose is a pain. (I use a length of
1/4" fuel line as a leader for my pneumatic riveter to save weight) For
the pre-drilled 3/32" holes I use a dremel tool with a titanium drill
bit. It weighs next to nothing and it's so fast it's like poking a
needle through. Again, keep the speed down to maybe 15,000 or it will
chatter.
Gordon

mike.davis@dcsol.com wrote:

The drill I am looking at getting is 2800 RPM... but that's the fastest I've
found for a "reasonably" priced one... I saw a couple at 3200 and 3600 at over
3 times the price. The 13,000 - 17,000 rpm drill is only $85 from Aircraft
Spruce... just doesn't seem right.

Mike

On 5/19/2003 8:46 PM, MURPHY-REBEL@DCSOL.COM wrote to MIKE DAVIS:

-> Hi Mike !
->
-> I think the 'cleaner hole' thing was based on local experiences
-> with 6,000 rpm air drills - that being a 'standard' (???) speed that
-> was readily available ....
->
-> 13,000 - 17,000 rpm !!!! Wooooow !!! Sounds like a
-> screamer !!
->
-> Only cautionary note I've heard about the faster drills -
-> "They're fast & light, and do produce a clean hole, BUT ......
-> they make a GREAT ROUTER if you're not VERY careful, and quick with
-> the OFF button !" ;-) ;-^) :-) ;-)
->
-> Might be very handy for oval holes - like skylights !! ;-^)

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Phil McGrogan · Post by **Phil McGrogan** » Fri Feb 17, 2012 11:02 pm

Mike, I would think that this is a modified 90^ die grinder (from the speed
range and the drilling capacity). While it may indeed produce a cleaner
hole if used in a properly controlled way, I don't imagine that it has a
teasing trigger, hence it will be either on or off. When starting a hole it
will have tendency to walk from the desired location.

Phil McGrogan
SR32QB

<snip> . . . . The 13,000 - 17,000 rpm drill is only $85 from Aircraft
Spruce... just doesn't seem right.

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Rebflyer · Post by **Rebflyer** » Fri Feb 17, 2012 11:08 pm

Well I bought a recon'd high speed air driven at osh a few yrs back for the
float building. 5000rpm. It worked well. to keep it from walking, it just took
a pressure push prior to starting, a tech learned on the airplane. The
deburring was some what less. That's all the good I have to say. I hated fighting
the hose, after a long continued use my hand would get cold, and I still had to
deburr. I wouldn't do it again. I like my 9.6v makita that I've owned since
1978. It still has one original battery. Survived the drop test a number of
times, from as high as 20 ft to turf. and 8ft to concrete. IMHO Curt

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