Tuning Tip Threads

[Farrell]

Do you know what the exact size threads are used in tuning levers & tips? It seems as though the tips that screw onto extensions are either Hale-type or Watanabe-type - and the threads for screwing the extension onto the lever/hammer shaft are possibly a third size. I need to know exactly what size these threads are so that I can purchase appropriate taps and dies to get me going again....

Or should I enter the world of Fugan (sp?) or - what's the other new-fangled carbon-fiber thick-shafted lever?????

Terry Farrell
  ----- Original Message ----- 
  From: Joe And Penny Goss 
  To: Pianotech List 
  Sent: Wednesday, April 09, 2008 12:22 PM
  Subject: Re: Tuning Tip Threads


  Yes they are different and your shaft is not heat treated so rough tight pianos will strip the loose thread.
  Two or more issues I think invilved here. Metric and standard inch thread and wearing out of threading die.
  The Boston thread is the largest in diameter that I have run into and the Sole the smallest.
  Joe Goss RPT
  Mother Goose Tools
  imatunr at srvinet.com
  www.mothergoosetools.com
    ----- Original Message ----- 
    From: Farrell 
    To: pianotech at ptg.org 
    Sent: Wednesday, April 09, 2008 9:13 AM
    Subject: Tuning Tip Threads


    I've managed to strip the threads of both my tuning levers this past week. I have a bunch of Hale and Watanabe tips. Are the female threads of the Hale tips different size from the Watanabe? It sure appears that way.

    I've got all these tuning tip parts and nothing seems to screw properly to one another...... :-(

    Terry Farrell
    Farrell Piano

    www.farrellpiano.com
    terry at farrellpiano.com
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