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Old 10-13-2019, 02:15 PM
BryanG BryanG is offline
Join Date: Oct 2019
Location: Enid, OK
Posts: 2
Default Sioux DR1416 vs 1412 vs other


My father and I recently decided to attempt an RV-10 build. We are in the planning/tool collection phase right now. I bought the RV-10 tools kit from Cleaveland and I am looking to add an air drill to that.

I think we would like a sioux so I am mostly interested in comparing the following but i'm open to other recommendations as well.

SIOUX 1412
3600 RPM
Weighs 1.3 lbs
6.3" long
1/4" capacity chuck
Ergonomic comfort grip

6000 RPM
Weighs 1.3 lbs
6.3" long
1/4" capacity chuck
Ergonomic comfort grip

Any opinions are appreciated.

Thank you,
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Old 10-13-2019, 03:35 PM
wirejock's Avatar
wirejock wirejock is offline
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,425
Default Sioux

I have two of the slower. Love them. Not sure there is a real need for 6000 RPM. Both have served me well.
Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 12/27/2018. Plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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Old 10-13-2019, 03:39 PM
BryanG BryanG is offline
Join Date: Oct 2019
Location: Enid, OK
Posts: 2

Originally Posted by wirejock View Post
I have two of the slower. Love them. Not sure there is a real need for 6000 RPM. Both have served me well.
Thanks for the input.

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Old 10-14-2019, 08:57 AM
Mike Hepperlen Mike Hepperlen is offline
Join Date: Oct 2010
Location: Crystal Lake, IL
Posts: 15
Default Sioux Air Drill

I have the slower one and it is for sale plus the Cleveland Tool quick change bits plus some used drills with the quick change attachments. I am asking $200 for everything. If you would text me your E-mail address, I will send you my complete tool list.

Mike Hepperlen
Chicago Area
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Old 10-14-2019, 09:58 AM
rapid_ascent rapid_ascent is offline
Join Date: Mar 2008
Location: Dublin, CA
Posts: 1,085

I have one of the DR1412s itís a nice drill and seems to work great for anything Iíve had to do. I have the quick change adapters from Cleaveland Tools. Iíd recommend adding those. I have the supplied Souix chuck on an adapter as well for those less common drill sizes.
Ray Tonks
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Old 10-14-2019, 11:29 AM
terrye terrye is offline
Join Date: Feb 2010
Location: Vancouver, BC, Canada
Posts: 785
Default Sioux DR1416 vs 1412 vs other

Almost all of my drilling is with a Bosch 18V cordless drill. I have an expensive Atlas Copco high speed air drill that I almost never use. Almost all the kit holes are pre-punched, so if you have a drill press to drill the non pre-punched holes, I don't think you'll use a hand held air drill much.
Terry Edwards
RV-9A (Fuselage)
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Old 10-14-2019, 11:47 AM
KatanaPilot KatanaPilot is offline
Join Date: Feb 2015
Location: Locust Grove, GA
Posts: 501
Default Slightly different opinion

My understanding of recommended drill speeds (there are charts and formulas) indicate faster is generally better for aluminum.

Based on the formula I used (3.8197/drill bit diameter) X 200-300 yields a recommended speed of around 7000 RPM for a #40 bit and around 6000 RPM for a #30 bit - the two most common on an RV-10. Steel drilling is considerably slower.

I was taught at Synergy - the quicker you get in and out of the hole, the better. Less likely to oblong the hole.

When match drilling a few hundred holes at a time, I prefer the lightness of the air drill coupled to a lightweight air hose (like the ones Cleaveland Tools sell) versus a cordless drill.

Just another opinion.
Krea Ellis

Locust Grove, GA
DA20-A1 "Princess Amelia" - gone home to Amelia Island
RV-7A Phase 2
RV-10 under construction

Last edited by KatanaPilot : 10-14-2019 at 11:52 AM. Reason: added hyphen and text
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Old 10-15-2019, 09:35 AM
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JonJay JonJay is offline
Join Date: Jan 2007
Location: Battleground
Posts: 4,214

You canít go wrong with Sioux drills. The 3600rpm is just fine for sheet aluminum, and generally any RV build.
ďSpeed and FeedĒ is an old machinists mantra. You balanced production, post machining processing, and tool wear (cooling). You wanted proper chip formation to make a clean hole or path, for the material to assist in coolIng the tool, and not have a lot of sanding or cleaning up of mill marks.

We donít need to worry much about that with sheet aluminum, and we arenít in a mass production shop. You can throw the formulas out the door for the most part in an RV build, although it is good to understand why they exist.

Many have good success with slower battery drills. They are heavier, and many suffer poor run out which may or may not affect the end result. It is more a personal preference thing. Lots of discussions in the past.
Smart People do Stupid things all the time. I know, I've seen me do'em.

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Old 10-15-2019, 10:02 AM
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DaleB DaleB is offline
Join Date: Sep 2012
Location: Omaha, NE (KMLE)
Posts: 2,150

When I was building, I had a Sioux 1412, a cheap Northern Tool 1800 RPM air drill, and a Ryobi 18V cordless.

The cheap air drill was loud, big, and slow.

The battery powered drill was great for drilling small numbers of holes, especially in places where it was inconvenient to drag an air hose. But, it's heavy and you probably don't want to match drill wing skins with it.

The Sioux was simply a joy to use. Fast, quiet (for an air drill), light weight. Also, its resale value when you're done with it is a significant percentage of the new price, so it really doesn't cost much in the long run.

Omaha, NE
RV-12 # 222 N980KM "Screamin' Canary" (bought flying)
Fisher Celebrity (under construction)
Previous RV-7 project (sold)
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Old 11-07-2019, 09:53 PM
AV8ER AV8ER is offline
Join Date: Dec 2017
Location: Orlando, Florida
Posts: 21

I have one of these from Brown Tool and like it.
SIOUX Signature Series Palm Drill - 3600 RPM

I added a keyless chuck as well and like it even better.
ROHM 1/4" Keyless Chuck

If you do add the keyless chuck you will need a spacer for it they sell. for Installing ROHM Keyless Chuck on Sioux Mini Palm Drill

I figured it was better to speed up the bit change rather than add a second drill into the equation.
- Tim
RV-10 bought not built (Thanks Carl!)
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