Question about Dremel 300 1/40A "Multi Pro" Rotary Tool Kit

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I cant loosen the head on the dremel 300. When I push the button and try to remove the head all I can hear is some clicking and it just wont let go the attachment

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  • boris_kos1 May 13, 2009

    Yes I know that, I disassembled one of my old dremels.

    I cant take it apart because they've put hexagon screws to hold it together and I don't have a wrench that small..

    Maybe that metal button got bent and it cant engage the hole any more? Can I buy a replacement for that?

  • boris_kos1 May 13, 2009

    alright... I made 1 of my wrenches smaller using my old dremel and finally opened my dremel 300. Inside I found a small metal rod that looks like it used to have a pointed tip but now its so flat it cant engage the hole. Tnx 4 the tip, I'm going buy this part tommorow.

  • boris_kos1 May 13, 2009

    tnx for trying scspriggs but if I make the rod any shorter I wont be able to push the button all the way down and I'm not really sure how the original point looked like. I'm not taking any chances... gonna buy a new one tommorow and replace it.

  • Samuel Charles Spriggs May 11, 2010

    I'm sure you can buy that part, but it probably just needs some bending/moving back into position.

    Just a suggestion: Those are torx screws. A set of torx screwdrivers is not that expensive. Man, they sure do come in handy.

  • Samuel Charles Spriggs May 11, 2010

    The button engages a hole in the motor shaft which keeps it from spinning when you turn the wrench on the chuck. There is something causing the button not to slip into the hole in the motor shaft. You'll have to take the tool apart and find out what's causing this.

    Can you take it apart and tell me what you find. Be very gentle, there are some parts which may fall out when you do this.



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Another suggestion: you could put a point on that rod with a grinder or a file, or a dremel, and it's good as new.


Could I get a "problem solved" / "fixya" rating on this -- there are icons at the bottom of this posting I believe.


Posted on May 13, 2009


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