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Thread: Convert Dremel rotary tool into 1" or 2" polishing rotary tool

  1. #1

    Convert Dremel rotary tool into 1" or 2" polishing rotary tool

    Hi there. I have been wondering is there any tool/adapter/backing plate out there that is suitable to fit into a Dremel rotary tool (which usually used for metal and wood working) so that the Dremel rotary tool converted into a spot polishing tool, capable of using 1" and 2" polishing pad, just like the pneumatic spot polishing buffer.

    I think the shaft that can be inserted into a Dremel tool is about 1/8" in diameter.
    A standard rotary backing plate available in my country is M14 size, I think in the US a Makita 9227C thread is 5/8".
    A standard DA backing plate thread will be 5/16".

    I aware that Flex has the small buffing pad for its PE8 rotary buffer, which now has 1", 2" backing plate and pad.

    Convert Dremel rotary tool into 1" or 2" polishing rotary tool-flex-rotary-backing-plates-1-2-3-inch-diameter-2.gif

    So I think the most direct conversion will be an adapter of M14 male (to be inserted into the backing plate) at one side and a 1/8" shaft (to insert into Dremel). But I think no such adapter exists in the market yet? I have only see M14 to normal hand drill shaft adapter like below:

    But this shaft cannot fit into the Dremel.

    I have the Dremel 4000 with Flex Shaft attachment.



    If you have other ideas please share. Thank you.
    watsodetail likes this.

  2. #2
    Senior Member
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    Re: Convert Dremel rotary tool into 1" or 2" polishing rotary tool

    A dremel doesn't have the torque to turn an adapter,backing plate and then pad.

  3. #3
    Senior Member Calendyr's Avatar
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    Re: Convert Dremel rotary tool into 1" or 2" polishing rotary tool

    Also the Dremel tool would probably spin way too fast even at the lowest setting. If memory serves it's a 10,000 RPM tool with 10 speed setting making the slowest setting 1,000 RPM. On such a small area as 1 inch, that could burn through paint very quickly.

  4. #4
    Senior Member MX5HIGH's Avatar
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    Re: Convert Dremel rotary tool into 1" or 2" polishing rotary tool

    Someone with a lathe could turn that shaft down to a size that would fit the Dremel.
    1990 Miata Crystal White 1.6 "B" package VLSD stock 5-speed

  5. #5

    Re: Convert Dremel rotary tool into 1" or 2" polishing rotary tool

    Quote Originally Posted by blkSRT View Post
    A dremel doesn't have the torque to turn an adapter,backing plate and then pad.

    Really? it looks pretty powerful in my opinion, can cut, grind, polish, and saw through many metal and wood material.
    But I can't be sure and stand to be corrected.

  6. #6

    Re: Convert Dremel rotary tool into 1" or 2" polishing rotary tool

    Quote Originally Posted by Calendyr View Post
    Also the Dremel tool would probably spin way too fast even at the lowest setting. If memory serves it's a 10,000 RPM tool with 10 speed setting making the slowest setting 1,000 RPM. On such a small area as 1 inch, that could burn through paint very quickly.
    Yes I agree the Dremel speed range is way too fast compare to a conventional rotary buffer (0-3000 RPM).
    The Dremel 4000 series has speed range of 5000-35,000 RPM.
    The Rupes Nano iBrid has range 2000-5000 RPM.

    I am thinking to use very light pressure when using it for this purpose.
    I would expect a very delicate skill is needed (the Flex Shaft will come in handy at this situation).
    I am actually thinking to use it on area like chrome badges or lining. So these areas are small and hard by itself. Although I do not rule out the possibility of using it on painted surface but your concern is very valid. Before I do it for real I should experiment it on a junk hood first of course.

  7. #7
    Senior Member Daviddear30's Avatar
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    Re: Convert Dremel rotary tool into 1" or 2" polishing rotary tool

    It has plenty of speed to cut stuff but torque is different
    It spins very very light weight cutting wheels etc


    Good luck with it. I like trying new stuff as well so let us know

  8. #8

    Re: Convert Dremel rotary tool into 1" or 2" polishing rotary tool

    Quote Originally Posted by ezriderga View Post
    Someone with a lathe could turn that shaft down to a size that would fit the Dremel.
    But my local workshop says unless I am ordering a bulk of this adapter otherwise he will not do it for me for a single unit. So at this moment I cannot use this suggestion but I know it will definitely works.

  9. #9

    Re: Convert Dremel rotary tool into 1" or 2" polishing rotary tool

    I found something that might be useful.









    It uses an adapter for a DA backing plate and it only goes down to 2" backing plate.
    But I guess is a good start to try.

  10. #10

    Re: Convert Dremel rotary tool into 1" or 2" polishing rotary tool

    Quote Originally Posted by Daviddear30 View Post
    It has plenty of speed to cut stuff but torque is different
    It spins very very light weight cutting wheels etc


    Good luck with it. I like trying new stuff as well so let us know
    Thanks Daviddear30. It is definitely a wild idea from me and I am not sure how well it will turn out. Experiment definitely needed.

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