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Where to Buy 4 pt socket to suit chuck hole ?

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  • Where to Buy 4 pt socket to suit chuck hole ?

    Looking at buying a 4 point square key socket (male) to be used in place of my chuck keys. Does such an item exist ? Where can one fine one ?
    Thanks.

  • #2
    Well of course if you have a mill it's easy, you just make one.
    But I remember when I didn't have a mill, a 3/8" drive extension was too small and 1/2" drive was too big.
    So I used a cheap 1/2" drive extension, layed out the dimensions on the drive that I wanted, roughed it in with a grinder, and then finished it up to final dimension with careful use of a file.
    Home, down in the valley behind the Red Angus
    Bad Decisions Make Good Stories​

    Location: British Columbia

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    • #3
      get a sliding t-bar of the appropriate size and cut of the bar or look for a reducer say 3/4 to 1/2 or 1/2 to 3/8, can be found in socket sets.
      But easier on the mill
      Peter
      I have tools I don't know how to use!!

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      • #4
        What size of square bar will fit into the hole in the chuck? Maybe you can find a piece of suare section key steel taht's a nice fit. Then, take the square key to a tool supplier, find a 12 point socket that fits (or can be persuaded to fit).

        Loctite or epoxy the key in the socket, job done.

        Ian
        All of the gear, no idea...

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        • #5
          Put 2 sockets together with a short piece of hex stock. The socket that is on backwards will have the square hole facing out.

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          • #6
            "Put 2 sockets together with a short piece of hex stock. The socket that is on backwards will have the square hole facing out."

            But then you will be "offering up" a "female-to-a-female" won't you?

            What am I missing?

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            • #7
              Looking at buying a 4 point square key socket (male) to be used in place of my chuck keys
              TR, What advantage do you expect to gain over your standard chuck keys? I'm just curious.

              Tom
              Tom - Spotsylvania, VA

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              • #8
                Originally posted by flathead4
                TR, What advantage do you expect to gain over your standard chuck keys? I'm just curious.

                Tom
                I would assume he wants more torque. In a few months you will see a broken or worn out chuck on E-bay. And he will need a new size "socket" to fit his new chuck.
                Paul A.
                SE Texas

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

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                • #9
                  Amazingly, even chuck keys get lost or broken. Also, truing in a 4-jaw chuck can be much more quickly and conveniently done if you have two keys and use them on opposite sides. Maybe he wants a #2?
                  "A machinist's (WHAP!) best friend (WHAP! WHAP!) is his hammer. (WHAP!)" - Fred Tanner, foreman, Lunenburg Foundry and Engineering machine shop, circa 1979

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                  • #10
                    May I suggest the use of calipers to measure the ID of the "socket" hole....and make one to fit..

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                    • #11
                      Sears Craftsman has THESE 8 point sockets available for square drive heads. You would still need to make the square piece to fit your chuck.

                      I use a automobile cross type lug wrench with the sockets removed and the four ends ground to square. One tool to fit the D1-3 spindle and chucks.

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                      • #12
                        I missed something. I thought the OP was talking about a chuck key. All my chucks have square female recessed drives for the pinion and my keys are male square drives.

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                        • #13
                          I have a set of Male square sockets for pipe plugs.
                          1/16" increments from 1/4" up to 3/4". Larger are available.
                          Available from your Snapon or Mac tool dealer.

                          Terry

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                          • #14
                            I made 2 keys to fit my 4 jaw because the one that came with it was junk and I wanted the 2-key option for centering.

                            New keys:


                            Original key:
                            It's funny about this Chinese stuff. The chuck seems well made and well finished but the key looks like an afterthought. Obviously the chuck has shortcomings but it's head and shoulders above the key.


                            Closeup of the square end that measures .260 across flats, the new ones fit nicely at .280. It's in the bin now, not sure what it'll be used for.
                            Mike

                            My Dad always said, "If you want people to do things for you on the farm, you have to buy a machine they can sit on that does most of the work."

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                            • #15
                              I got the same problem with my lathe.. I got 2 or 3 chuck keys of verious lengths with it, All have that lame flat knurled center on the bar.. And all allow the bar to slip right outta the shaft. Tempting to locktite it or something...
                              Play Brutal Nature, Black Moons free to play highly realistic voxel sandbox game.

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