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Thread: Help

  1. #1
    Join Date
    May 2017
    Posts
    14

    Default Help

    Can anyone help please I'm at my wits end - I broke one of my Busch drill bits taking it out of Foredom handpiece so thought I'd put a new collet in - no matter what I do the new one doesn't seem to tighten when I drop the lever - photos are closed on left and open on right - any advice please
    Efo

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  2. #2
    Join Date
    Sep 2011
    Posts
    1,006

    Default

    End of the bit left in?
    Author: Pearls A Practical Guide
    www.pearlsapractical.guide
    www.Pearlescence.co.uk

  3. #3
    Join Date
    Dec 2009
    Location
    Central London
    Posts
    8,251

    Default

    I'm not sure why you changed the collet. It should be easy enough to remove the shank of a broken drill.

    However if the new collet needs adjusting you will find A YouTube demonstration here. https://www.google.com/search?client...11fAP0IKHsAU14

    You will need a 1.5mm Allen key, but I presume you already have that Dennis.

  4. #4
    Join Date
    May 2017
    Posts
    14

    Default

    Sorry I haven't described properly- I got the bit out - I was thinking of changing the collet anyway as it wasn't holding some bits and grabbing others too tight - the new collet is not tightening at all - I've watched the video and done everything - I've measured the 5mm and screwed with Allen key but not closing at all - do you know of anyone who does servicing in UK?

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  5. #5
    Join Date
    May 2017
    Posts
    14

    Default

    This is the bit that broke - I felt that when I was drilling it was forcing the bit in then I couldn't get it out and it snapped

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  6. #6
    Join Date
    Dec 2009
    Location
    Central London
    Posts
    8,251

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    Sorry to hear that.
    I would try Milnes Brothers first, as I have had experience of them. Cousins Also advertise Foredom service.
    https://milnesbros.com/
    https://www.cousinsuk.com/category/p...rranty-foredom Dennis.

  7. #7
    Join Date
    Mar 2011
    Location
    Manchester UK
    Posts
    766

    Default

    Is the collet the correct size it looks a bit big big I think it should be a 2.35mm one. they only close up a small amount so its important to get the right size

  8. #8
    Join Date
    May 2017
    Posts
    14

    Default

    Thanks for the advice and links Dennis - Josef1 that is the size I ordered and it looks the same as the old one- maybe I've got a faulty one thanks again guys

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  9. #9
    Join Date
    May 2017
    Posts
    14

    Default

    Hi Dennis just another wee thank you for link - Ian at Milnes Bros fixed my problem free of charge - excellent service - good call

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  10. #10
    Join Date
    Dec 2009
    Location
    Central London
    Posts
    8,251

    Default

    Thank you for your feed back. We go back 25 years. It's where I bought my first reconditioned micromotor. Kind regards, Dennis.

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