Broken Agraffe

[David ilvedson]

> Date:          Thu, 31 Oct 1996 13:29:22 -0500 (EST)
> From:          Jon Page <jpage@capecod.net>
> Subject:       Re: Broken Agraffe
> To:            pianotech@byu.edu
> Reply-to:      pianotech@byu.edu

> Use an ez-out to remove stud.
> Fill drill hole with Marine-tex epoxy.
> (use a drill bit shank to maintain
> diameter of threads)
> tap for new agraffe.
>
> 2 weeks ago I had the nightmare of nightmares !
> ez-out broke in hole !
> small drill bit alongside broke also !  !   help !! !!
> I brought a machinist friend in to offer opinion:
>         set up drill press w/ carbide tipped end mill.
> back at his shop someone suggested a carbide
> bit in a Dremel Tool.   MAGIC !
> Buggered up the threads.   I used a drill bit shank
> to maintain thread I.D., greased threads in lower
> portion of hole and shank. Put some Marine-tex
> around inside of hole and around shank (except
> end). Inserted shank, using bottom of hole for position.
> Next day,  removed shank, started tap from bottom
> where threads were still good.  MAGIC !
> Fitted new agraffe so as not to strain new threads.
> What a relief ! ! !  Talk about snatching victory
> from the jaws of defeat.
>
>
>
>
> ~~~~~~~~~~~~~~
> Jon Page
> Cape Cod. Mass
> ~~~~~~~~~~~~~~
>
>
Congratulations Jon!

Now start using a fishtail tool to remove agraffes...Take a
small screwdriver and file a v into the tip...V with the two
points being the business end of the tool.  Clamp a small
vice-grip to the shank and tap with small hammer as you back out
the agraffe.  This will remove 99% of those darn broken
agraffes and guess what?  No possiblity of breaking off an EZ
out while removing.

David ilvedson, RPT
David ilvedson, RPT
Pacifica, CA