Chuck wrench for small drill chucks

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JimGlass
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Joined: Sat Jan 04, 2003 8:33 pm
Location: 40 Miles West of Chicago/near DeKalb
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Chuck wrench for small drill chucks

Post by JimGlass » Wed Jun 03, 2015 4:16 pm

I have acquired a number of those 1/4" drill chucks over the years. Always hated the little "L" shaped chuck wrench
used with the chuck. Changing the chuck jaws from a small drill to a large drill was always tedious for me. Now I'm using these small drill chucks in my new tailstock turret head. The little "L" shaped chuck wrench became an aggravating problem. It dawned on me there was a better way to make a chuck wrench for these small drill chucks.

Chuck, "L" wrench, My homemade chuck wrench:

Image

I always get a kick out of making gadgets like this. Went to the hardware store and discovered they offer a small chuck wrench that is a "T" style wrench. I removed the little "T" handle and inserted the shank and gear into a piece of CRS. First I Cross drilled and used the "T" handle to pin the shank to the shaft. Bought those little black balls with
10-32 holes tapped in them.

The knurled handle is used like a screw driver for resizing the chuck jaws. To tighten my fingers extend downward to the T-handle to tighten the chuck. I'll probably need to be careful not to over tighten the little drill chuck.

I gave my new chuck wrench some color by placing it on an electric hotplate I have in the shop. Heat it up until it starts to turn blue then drop the piece into a container full of real dirty motor oil until cool. That finish will resist rusting.

Thought this might be of interest, Jim
Tool & Die Maker/Electrician, Retired 2007

So much to learn and so little time.

www.outbackmachineshop.com

silence dogood
Posts: 23
Joined: Sun Oct 05, 2014 6:39 pm
Location: Pendleton, Oregon

Re: Chuck wrench for small drill chucks

Post by silence dogood » Wed Jun 03, 2015 5:53 pm

Great idea! Now I know what I will do with my extra keys. One thing that I will do different is put a hole or hook on them so that I don't lay it on the bench and spend 15 minutes looking for the sucker even though it's right in front of me. Mark

revrnd
Posts: 353
Joined: Sun Dec 18, 2011 10:38 pm
Location: Ontario, Canada

Re: Chuck wrench for small drill chucks

Post by revrnd » Mon Jun 08, 2015 11:09 am

silence dogood wrote:Great idea! Now I know what I will do with my extra keys. One thing that I will do different is put a hole or hook on them so that I don't lay it on the bench and spend 15 minutes looking for the sucker even though it's right in front of me. Mark
I've attached mine to the drill press table w/ a length of dog/light fixture chain. It would get legs that way.

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tornitore45
Posts: 1717
Joined: Tue Apr 18, 2006 12:24 am
Location: USA Texas, Austin

Re: Chuck wrench for small drill chucks

Post by tornitore45 » Mon Jun 08, 2015 6:28 pm

L key are aggravating because they are wrong, I hate as well and will not use them.
The T key applies a pure Torque, in the sense that there is NO lateral force trying to bend the shaft and possibly loosen the gear meshing.

The L key applies a torque plus a tilting force.
Mauro Gaetano
in Austin TX

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