Odd Agraffe Size

Sarah Fox sarah@graphic-fusion.com
Tue, 27 Jul 2004 11:27:30 -0400


This is a multi-part message in MIME format.

---------------------- multipart/alternative attachment
Hi Terry,

You're doing the entire set?  Drilling and tapping blind holes in cast =
iron is REALLY going to get old fast.  7/32 and 1/4 are too close in =
size for you to do this if the thread pitch is not identical between the =
two sizes!  If the pitches are different, you will end up with really =
awful threads, and you will likely break off the tap in one of the =
holes.

If you can find a die of this mystery size, and if the thread pitch is =
the same as with the 1/4", you could probably reduce the 1/4" threading =
to the right size.  (Brass is pretty easy to cut.)  This approach is =
going to get really old, too, but at least you don't risk any more than =
an agraffe from a jammed or broken tool.

~or~

Is it possible to get some agraffe manufacturing company to mill you a =
set of custom ones?  You'll pay a bit of money for them, but I bet it =
would be well worth it.

Peace,
Sarah


----- Original Message -----=20
  From: Farrell=20
  To: pianotech@ptg.org=20
  Sent: Tuesday, July 27, 2004 10:08 AM
  Subject: Odd Agraffe Size


  I wish to replace a set of agraffes on an 1890s Knabe grand. It =
appears the thread diameter is slightly larger than a standard 7/32" =
agraffe. I suppost others have run across this odd thread size? If so, =
any solutions? Are replacements available anywhere? Drill and tap for =
1/4"?

  Thanks.

  Terry Farrell

  www.farrellpiano.com
---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/39/a9/fe/ba/attachment.htm

---------------------- multipart/alternative attachment--


This PTG archive page provided courtesy of Moy Piano Service, LLC