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Making a chuck key..

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  • #16
    Nothing fancy, I needed a longer one in a hurry a while back and just cobbled this up on the fly real quick.
    A couple of pieces of hot rolled, drilled out the bottom of the main part of the key, cross drilled it at the bottom for a couple of welds to hold the "tool steel" (1026) bar that I milled the appropriate sized flats on. Not a project to build a shrine around but it got me back in the ball game real fast.

    Home, down in the valley behind the Red Angus
    Bad Decisions Make Good Stories​

    Location: British Columbia

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    • #17
      Instead of a T I put the cross piece half way down. That way I have two ends for two diffeent chucks (two lathes). As you probably guessed the key is always over on the other lathe....

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      • #18
        I just turned one in it's entirety and pressed it together. 16" handle for a 9/16" key, seems to be about right. Using a steel you can harden on the square is a good idea.

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        I've got a fair few keys to make in the future, so I made an Excel driven cad model. I was working a few kinks out of it today, and once I've got my drafts up and done, it should be as simple as changing a few values til it looks right, then hitting print. Rinse and repeat.
        21" Royersford Excelsior CamelBack Drillpress Restoration
        1943 Sidney 16x54 Lathe Restoration

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        • #19
          One option I do have, I have the smaller camlock change key...I could make a shim for it to use it at least while a make another key...

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          • #20
            A tool that’s regularly used needs to be easy on the hands when you lean on it. I keep a collection of old knobs for just such use. I picked up a 6” Buck Chuck that was in good shape. The wrench that came with was not up to my standards. The replacement is typical of what I need for a chuck wrench.

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            • #21
              Ike

              Your wrench turned out great .

              Hal

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              • #22
                Wel, today I used a 1/2 drive extension, , with a shim that fit 2 sides of the square, then hooked it to a 3/8 ratchet with adaptor to 1/2 inch.
                that seems to work ... to get me going... I am hoping the original chuck key shows up..

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