Watanabe thread size?

[Joe And Penny Goss]

Tip thread is not tapered but the head thread is.
There are at least three tip thread sizes, none of which seem to be standard <g>
Joe Goss RPT
Mother Goose Tools
imatunr at srvinet.com
www.mothergoosetools.com
  ----- Original Message ----- 
  From: reggaepass at aol.com 
  To: pianotech at ptg.org 
  Sent: Tuesday, September 18, 2007 10:35 PM
  Subject: Re: Watanabe thread size?


  John,

  I am not certain about his, but I have heard that most (if not all) tuning tip threads are tapered.  Anyone know for sure?

  Alan Eder





  -----Original Message-----
  From: John Formsma <formsma at gmail.com>
  To: Pianotech List <pianotech at ptg.org>
  Sent: Tue, 18 Sep 2007 7:27 pm
  Subject: Watanabe thread size?


Anyone know what threads the Watanabe tip receives?

The stud onto which the tip screws measures 9.49 mm X 0.85 pitch in
metric.  I'm guessing that's almost certainly *supposed* to be 9.5 mm.

9.5 mm is almost 3/8" -- just 0.0013" shy of it, in fact.  A standard
3/8" with 30 threads per inch corresponds exactly to the stud
threads...except for the very slight difference in diameter.

So I'm thinking the 3/8" will work fine.  The tip has enough play in
it that it should screw on without any problem.

Anyone know offhand?

Thanks,

JF

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