Tuning Pin Hole Reamers

[Terry Beckingham]

Hi Walter,

Thanks for the reply. I am repinning because the torque was low. The piano
was essentially untuneable. I have restrung four other pianos in the past
without reaming. I was not satisfied with the torque. If varied quite a bit
from pin to pin, with many having torque that was too high. I had heard that
reaming would give a more even torque. This old upright is not worth a new
block and I think that would be beyond my capabilites anyway.

Cheers

Terry Beckingham
Associate Member

At 10:04 AM 6/11/99 EDT, you wrote:
>For What It's Worth:
>
>I agree with using .30 caliber rifle brushes on the holes, especially if 
>you're going from 2/0 to 3/0 pins.  (How is the torque now?  Are you 
>restringing because of low pin torque or aged strings?)  If pin torque is too 
>low, I would go to 4/0 pins & use a reamer, observing the cautions about 
>getting it too hot-ruins the block & the reamer...If possible, use a drill 
>press w/ adjustable angle base @ 700-900 rpm & Vortec bit cooler.  Better 
>yet, put a new block in the piano & save yourself the worries.  A new maple 
>blank is only $60 + a day's work to install.  I hate betting  $1500-1800 in 
>restringing work on an old piece of maple plywood.
>
>Walter Connell
>C & A Pianocraft
>Dallas, TX
>