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  • 10 mm square socket

    I need a hand, T handle type, wrench to fit a 10mm square head. The outside diameter 3/4" will be adequate length/height 4 or 5inches. I've searched for a zillion times with all sorts of words and can't find even a socket for a 1/4 or 3/8 drive ratchet for an 8 point 10mm . with the intent of welding a shank on it. Don't have broaching tools but the normal stuff for lathe and mill . Don't picture trying to drill a 10mm hole and filing the corners to fit. :-) especially in the end of a rod . So! Is there any "object" with such a hole that could be cannibalized and attached to a shaft to do the job.?? I imagine such wrenches are readily available in Europe but I need one here in NM. :-)
    Thanks for any other ideas.
    ...lew...

  • #2
    Does the female end of a 3/8" socket extension fit over the square head? If it does you could cut down the extension and add a "T" handle. Technically 3/8 should be too small but if the end of the extension is made a touch over to allow for easy insertion it might just fit over your square screw heads. And perhaps try a couple as some extensions are a little bigger and sloppier a fit?

    Chilliwack BC, Canada

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    • #3
      https://www.amazon.com/CTA-Tools-204...9324316&sr=8-1

      Or time to build your own rotary broach tool.. after all this hobby is building tools to build tools.
      Location: Helsinki, Finland, Europe

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      • #4
        Seems any 3/8 drive socket could be a candidate to be filed out to .394. Dollar store or big lots usually has cheap sockets. I would look for one that has a through hole.

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        • #5
          If the fit isn't critical you might find a 12 point socket that fits. I'm too lazy to go to the shop and mess with square stock to see what might come close...

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          • #6
            https://www.ebay.com/itm/Genius-Tool...-/323103296744
            Location: Helsinki, Finland, Europe

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            • #7
              How about this ?

              https://www.samstagsales.com/amf.htm#square_socket

              Never dealt with them before, but they've got quite a selection
              square socket keys. JW Winco would be anther place but they didn't have
              a 10mm square key.
              Last edited by jcfx; 09-05-2020, 01:46 PM.

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              • #8
                You should be able to get hold of an eight point 3/8" socket. That is only slightly smaller than your 10mm square. Your mill could take a little off each side.

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                • #9
                  Quick and dirty.. mill a couple pieces of 3/4 round to . .378 thick. Mill a 10mm slot in each. Cut off clamp together and weld, add T handle.

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                  • #10
                    https://www.bing.com/search?form=MOZ...8+point+socket
                    Paul A.
                    SE Texas

                    Make it fit.
                    You can't win and there IS a penalty for trying!

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                    • #11
                      https://www.amazon.com/T-Handle-Sock.../dp/B00023TASS

                      ‚Äč
                      Or if you want just a small socket https://www.ebay.com/itm/Genius-Tool...-/323103296744

                      Last edited by Arcane; 09-05-2020, 05:55 PM.
                      Location: Saskatoon, Saskatchewan, Canada

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                      • #12
                        A normal 10mm 12-point socket will work

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                        • #13
                          OK so I can't do a very good search. That one on E-bay for buck and half would be perfect for the "make" proj.. The complete wrench for 30 some bucks is what I need but that is way out of reason. The standard 3/8 drive square is way too tight and would be difficult to enlarge. The 10mm female socket for some "drain plug" looks like a winner .
                          So many thanks to all.
                          ...lew...

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                          • #14
                            Gave up on buying something and spent about 4 hours on the Bridgeport last Thursday. It works fine. Wasn't sure about using the 1/8 endmill with only a bit over 1000 rpm available on the mill I had to use but SLOW and steady got-er done. :-) An X drill would have been better but 25/64 worked OK . After the fact , the corner holes could have been inside a bit rather than on the corners for a neater look.
                            ...lew...
                            Attached Files

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                            • #15
                              Nicely made, it will last a lifetime.
                              We have 5/16" square screws on the toolpost, compound, travelling steady and saddle stops on the museum's Smart & Brown model A, and Mike used a 5/16" double square by 1/4" drive socket pressed on to a tee handle with a square just over 1/4". It has been in use for years without the socket falling off. Its nice to have one tool to fit so many different parts of the machine. Not so with the chuck keys, we have 5 different sizes, plus 3 sizes for drill chucks.

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