Pianotech

  • 1.  Request thread size for a new M&H A agraffe

    Registered Piano Technician
    Posted 08-21-2024 12:45

    Hi folks,

    Thanks for being available and so willing to help out.

    Quite unusual, but an agraffe popped off on a newly purchased 2023 Mason & Hamlin A.  If I was more prepared for all contingencies, I would already have all taps, etc. in a repair kit, but I don't.

    Can someone tell me what tap I should take with me just in case I need to chase the threads?  (Yes, I've requested this info from M&H, but it seems that they are quite busy these days.)

    Thanks for your help.

    Mark Ultsch, RPT



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    Mark Ultsch RPT
    Beloit WI
    (608) 362-9572
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  • 2.  RE: Request thread size for a new M&H A agraffe

    Registered Piano Technician
    Posted 08-22-2024 02:20

    A left hand drill bit should pop the agraffe stem out with no problem.  Just be sure to center the drill carefully and it should leave a  clean set of threads.

    Try a 1/8" bit (available at most hardware stores).



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    Blaine Hebert RPT
    Duarte CA
    (626) 390-0512
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  • 3.  RE: Request thread size for a new M&H A agraffe

    Posted 08-22-2024 09:43

    Mark, just a reminder that brass is soft.  Be sure to use a drill with the left-handed drill bit that has an adjustable clutch.  If it does not, be sure to slightly dull the tip of the drill bit before using it (standard practice with brass).  Regards, Norman.



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    Norman Brickman
    Potomac Piano Service
    Potomac, Maryland
    potomacpiano@verizon.net
    https://potomacpiano.com
    (301) 983.9321
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    Original Message


  • 4.  RE: Request thread size for a new M&H A agraffe

    Registered Piano Technician
    Posted 08-23-2024 04:06
    I have pretty good success removing the stems with 

    ENGINEER PZ-58 Screw Removal Pliers Extractor Pliers 

    I just did one on Tuesday. You can buy them on Amazon. 

    Rob

    Robert B Edwardsen
    Registered Piano Technician
    21 Courtenay Circle
    Pittsford NY 14534
    585-586-1360
    edwardsenpianoservice.com

    Sent from my HAL 9000




    Original Message


  • 5.  RE: Request thread size for a new M&H A agraffe

    Posted 08-23-2024 04:28
    Hello, Robert,

    The eye that never blinks until the last card is removed....

    Very good.

    Kind regards.

    Horace


      Original Message


    Original Message