balance hole reamer?

[John Delacour]

At 17:27 -0700 18/3/08, Jurgen Goering wrote:

>This is the tool that is usually referred to as the balance hole 
>reamer.   Its purpose, as has been described, reduces the thickness 
>of the keystick bottom at the balance hole from the top (inside) of 
>the balance pin hole.

>Attachment converted: Mac Mini:bal.ream._macro.a.a.jpg

Ah.  Then it is not a reamer but a counterbore.

JD