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Bench grinder modification

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  • Bench grinder modification

    Well I could only find a jacobs chuck with a 3/8" or 1/2" fine thread hole to mount it to something. I took the chuck to a machinest friend of mine, he drilled it out and put a 5/8" coarse thread on it. I was then able to replace the keeper nut on the grinding stone with the chuck, Perfect. Now all I have to do is use a hole saw and cut a 2 1/2" hole on the cover and put it back on. Then I will be ready to use my pneumatic drum sander.
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  • #2
    Are you going to leave the "grinding wheel" on when using the drum sander?


    • #3
      Personally I think a griinder is a bit fast for a drum sander application. I simply mounted a chuck on an old 1750 rpm motor and it works fine. If you are going to use the grinder as a sander I would take off the stone. If you have ever seen a stone explode you will know why. I always stand back and to the side when starting my grinder until it comes to speed for a minute just to be save.



      • #4
        yes I will be removing the stone while using the sander, and I purchased a low speed grinder, 1725 rpm.


        • #5
          You have a winner there,would be handy for other attachments.


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