botched agraffe stem removal

[Isaac Sadigursky]

Hi,Matt!
I would advice to go to 1/4" agraffe size and it should work. In case
threads are really damaged-go to 9/32" size.Pianotec and Schaff have all
those supplies...Heli-coils don't work in agraffe application.... And in
case threads are really-really-really messed-up,I have 1/2" custom made
plugs for those extreme cases..Feel free to call me.. Good
luck!!!![beginners luck usually doesn't work with agraffes,you have to be
prepared]...Isaac Sadigursky,A.S. [agraffe specialist with lots of grey
hair]
Los Angeles Chapter

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Matt Wynne
Sent: Saturday, December 15, 2007 2:04 PM
To: pianotech at ptg.org
Subject: botched agraffe stem removal

Hi All:

I've got an S&S parlor grand where a broken agraffe at the top of the 
tenor section was not removed well  as a result, there's been serious 
thread damage and at this point, I think tapping for a larger agraffe 
is needed.  Yamaha-style agraffes have a wide enough diameter but 
taps are not readily available locally as the thread is superfine.  I 
have not called Yamaha or S&S yet, as I plan to, but I was thinking 
that maybe some here have run into this problem and may be able to 
offer some sagely advice as to the best way to proceed.  Maybe 
there's some type of helicoil kit available?

-Matt