Cowan Chuck in USE
TESTIMONIALS: Hi John, The chucks arrived today (8 days total!).
The postal time was
actually very good, based on priority Ebay items that I have received from the southern US. I was pleased to find them after searching and only finding standard ¼” hex chuck adapters. With a ½” drive on the impact driver, it made sense to me that an adapter chuck should fit on
directly, but, thankfully you already came to that conclusion. I tried one with a ½”
drill bit and found that the chuck certainly self-tightens further under impact, but loosens easily when reversed under power. These are great tools and thank you for the quick service. Don
Hill.
Toronto Ontario M1N 3A7
Canada Hey John,
Here are a few pictures from the project, we are cutting out some older
bridge piers and using the impact to drill anchoring holes for the wire saw bracket and as stoppers (so the wire does not
ride up out of the area we want cut)
The chucks are working great!! Holding up very well to our abuse.
Talk to you soon,
Jeff
Hi there Jeffrey, Thank you so much for the pictures. They look great! Can I have your permission to display
them on our web site? John John R. Cowan CEO J R COWAN Mfg.
Hey John,
Of course you can use the pictures, feel free to use the RMEDIVER
Commercial Diving name as well as we fully endorse your tool!!
Jeff
Jeffrey M. Lane
President
RME-Diver Commercial Diving LLC
7547 Holly Circle unit A
Panama City, FL 32408
Office - 850-249-0101
Cell - 850-867-0364
Fax - 850-233-2806
www.rmediver.com
Diver Nolan ready to start a saltwater
dive with an impact wrench and our Cowan Chuck attachment.
Diver Nolan entering saltwater with an impact wrench and
the Cowan Chuck (below). Nolan is about to drill bracket holes underwater in the shown concrete pillars.
(below) Post dive. Nolan shown holding the impact wrench
with the Cowan Chuck, obviously pleased with its underwater performance.
(Below) Saltwater can be seen on both the Cowan Chuck
and the impact wrench, post dive.
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Hi John,
I'm on the road in my RV (5th wheel) and using your chuck every time
I park for the night. The chuck is working beautifully and has eliminated a lot of work for me. I don't know if I told
you what I'm using it for but picture a dual axle 5th wheel where the tires have only about 1.5 inches of clearance between
them. To make the rig more stable when parked, I've made a device of two triangular blocks of wood with a 3/8" threaded
rod going through them. I place this between the tires with one block pointing down from the top and the other pointed up
from the bottom. The threaded rod had a cap nut on one end (the bottom) and a fixed nut on the top (can't think of the
name but it has 3 points that push into the wood to hold it in place). The clearance from the ground is small. I got a 90-degree
attachment from Lowe’s that I fastened to your chuck. Then I put the chuck in my 1/2" DeWALT 18-volt impact wrench.
In seconds I can tighten these two blocks of wood together to lock the wheels in place so the rig is more stable. Thanks for
the chuck. I'm sure I'll find other ways to use it but for now, it's worth its weight in gold to me.
Larry    --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hi John,
I have a new use for your Cowan Chuck I would like to share. The air impact
hammer shaft I made years ago with a large washer as a shield for blow back from rust and scale is shown in the picture below.
I use this tool on my air impact hammer to loosen rusty bolts and turn with a wrench the large nut behind the washer.
You would not need to have the shield or nut , just have the 1/2 in male extension with the locking pin cut and
welded to the end of the hammer's impact shaft. As you can see the hole in your chuck now accepts the
1/2 inch male socket with the locking pin and will not allow the chuck to fall off.
As
you can see I can now use your chuck to insert many types of nail sets to use in my air impact hammer. Just the tool
for drilling and punching out parts all in one. I'm a happy camper.
Thanks,
Steve
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John,
Tested the chuck on concrete, brick etc. Like a hot knife through butter. After years of blisters
and burnt bits, I had the solution under my nose (I have had a compressor and impact wrench for many years).
Regards
Ray L.
Phoenix, AZ
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You list several great “Cowan Chuck” features, but there's one benefit missing that I find very important.
In fact, it's one of the main reasons I almost always grab my impact wrench instead of my hammer drill...
The
impact drill transmits a lot less torque shock to my hands, wrists and arms. A LOT LESS. Not only can I drill holes more efficiently,
but there’s far less fatigue! I'm sure that translates to fewer injuries, both acute and repetitive.
Regards,
Fred O.
Los Feliz, CA
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comment: This is a very good idea for an electrician's new way of using tools.
I HAVE BEEN LOOKING FOR THIS
TOOL FOR 16 MONTHS!
Albert M.
Los Angeles, CA
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This chuck is amazing the way I can drill through walls when I am repiping. Wall studs and plaster is like soft butter.
Thanks for coming up with this cool tool!
Yochin Plumbing
San Fernando, CA.
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comment: I have used two of your chucks for the past month and can highly recommend them. They are of high quality
and operate smoothly when tightening or loosening a drill shank.
Thank you.
John K. Carlson
Kingsville,
TX
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This is a great tool to have at new construction sites. When we don't have electricity yet, I still can drill
holes using my gas powered engine compressor and your chuck. Great tool!
Harold A.
Klamouth Falls, OR
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Colleen wrote:
I am past the warranty period, but I would
like some advice. I used my Cowan Chuck for the first time today. When I finished drilling I could not open the
jaws using the key. It is absolutely stuck. Is there some way I can get the jaws to open and release the bit?
Thank you.
Colleen Erbel
J R COWAN Mfg. replied:
Thank
you for your email. One of the characteristics of the Cowan Chuck is that it clamps down on the bit rather than becoming loose
as a hammer drill does. There are 2 very simple ways to loosen the chuck. The easiest is to just drill in reverse
in the hole you made. The second way is to set the socket part of the chuck on a flat surface so as to stand it upright. Insert
the key into the chuck. While holding the key into the chuck with your left hand, tap the key with a hammer using your right
hand. Please be careful not to hit your left hand, because that smarts. Also make sure you are turning in the correct direction.
I hope this helps you.
Sincerely,
John
Colleen
responded:
John,
Thank you so much for
your quick reply. Your advice worked perfectly.
As
I wrote in my previous message, I had just used my Cowan Chuck for the first time. What I did not say in that message
is that the Cowan Chuck worked like a champ..
I was concerned that it might be difficult for me to use my
impact wrench as a drill. I thought that I might not be able to control the drilling as easily as I can with my regular drill.
My concern was unfounded, using the Cowan Chuck was so easy and so fast. What a great idea.
Thank
you
Colleen Erbel
J R COWAN Mfg: replied:
Hi
Colleen,
Thank you for your email. I am glad that you
are happy with your new Cowan Chuck. Happy drilling!
With
your permission, I would like to put your email on our web site. Sincerely, John
Colleen replied:
Dear John,
Absolutely you have
my permission, I am a fan.
Again, thanks for being so helpful.
Colleen Erbel ------------------------------------------------------------------------------------------------------------------------------------
COMMENT:
It would be interesting to see a video of your impact wrench chuck working on a corded or cordless electric
impact wrench.
Besides drilling, another use of your chuck might be to drive a planting augers such as those made
by "Yard Bulter" http://www.amazon.com/Yard-Butler-RP-3-2-75-Inch-Diameter/dp/B000S61YO2/ref=sr_1_4?ie=UTF8&s=home-garden&qid=1270314387&sr=8-4
A gardener would more likely use an electric tool than an air tool.
Reviews of the planting
auger report that the round shaft must be flattened for a chuck to get a good grip on it, so I take that for granted.
An impact tool might twist the users hands less than an electric drill when the auger becomes stuck. I have used this
auger with an electric drill. At a depth of about 18 inches, I find that my Ryobi 3.5 amp drill drives the auger at a very
low speed and the motor of the drill smells like it is overheating. An electric impact tool might do better.
It might be hard to use the chuck to pull up on the auger bit if the chuck's socket pulls off the shaft of the impact
tool, but I didn't find it necessary to pull hard on the auger since reversing the drill causes the auger to come back
out of the hole easily.
Stephen
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