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Bench grinder

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  • Bench grinder

    Went out today and purchased a general 8" bench grinder. I want to convert it over so that I can run a pneumatic sanding drum on it. Does anyone know if you can buy an adaptor for the 5/8" threaded shaft to mount a drill chuck on, or do you have to make one.


    Steve W.

  • #2
    I think you're looking for a Jacobs 3326A Drill chuck. It has a 5/8 inside mounting diameter and was used on some shopsmith units.
    Last edited by JimInMA; 03-18-2012, 10:00 AM. Reason: typo


    • #3
      I have an adaptor on an old washing machine motor for my dust mop....I think I found it at the local hardware store. I don't remember though for sure. it has an allen screw that tightens down to hold the mandrel in place.
      "Still Montana Mike"

      "Don't worry about old age--it doesn't last that long."
      Mike's Wood-n-Things LLC


      • #4

        Thank you for your input, it's taking me a lot of fooling around and money to put all of these tools together, I should have a fully operational woodwork shop ready for my retirement in the next year and a half.


        • #5
          Getting your tools, organizing your shop will be an ongoing process. What we refer to as a work in progress. Enjoy the gathering. Look forward to creating mountains of sawdust. Share some pics of your shop in progress.
          "Still Montana Mike"

          "Don't worry about old age--it doesn't last that long."
          Mike's Wood-n-Things LLC


          • #6
            Mike has the right of it. I converted both a 6in. and an 8in grinder with the type of mandrel he suggested. It's inexpensive and the stuff you need is available at any decent hardware store, even Ace.



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