[CAUT] Aluminum hammer rail (Screw hole) repair

[Ron Nossaman]

> Here’s a way to repair stripped screw holes (Especially if an oversized 
> screw strips) in an aluminum rail that takes less than a minute or two. 
> “Helicoils” is what they are called. (See attached pic.)

Hi Jim,
I've been a fan of these things for some time. I haven't had a 
lot of need, but the idea and implementation is first rate. 
Now, if we could get these folks to make 36 tpi inserts that 
could be used with an appropriate tap for bringing odd size 
original agraffe studs back into standard supply house range, 
more piano techs would suddenly become fans.
Ron N