[pianotech] snugging up an agraffe

Andrew Anderson anrebe at gmail.com
Sun Oct 3 19:42:08 MDT 2010


seems to me that you would file the bottom of the agraffe or  
countersink a little to have an agraffe snug up at the desired angle  
to the strings.  Am I missing something here?  pushing brass to the  
point of stripping the threads seems to miss a step...

Andrew Anderson

On Oct 3, 2010, at 12:13 PM, Ed Foote wrote:

>
>
> Dave writes:
>      First came the assumptions.......1/4 inch standard Steinway  
> Agraffe size......so I am told.
> I have a .215
> 7/32 is .219 ........hmmm
> Something I should know here?<<
>
> What I found, disappointingly enough, was that all the supposed  
> "7/32" agraffes, the threads are all undersized.  This was not so in  
> 1915, at least judging from the agraffes I have removed from those  
> vintages. I have had trouble, several times in the past, getting new  
> agraffes to be held securely enough  in the plate. The threads would  
> strip before I could snug them sufficiently in position.  I was told  
> that all agraffes are made in the same place,and orders from a  
> variety of suppliers seemed to bear this out.
> Good luck,
> Ed Foote RPT

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