balance hole reamer?

[A440A at aol.com]

JD writes: 
<< I can't imagine ever wanting to _ream_ a balance hole.  If I find 
them too tight I just ease them a little with a smooth awl.  >>

  Um,  do you do this from the bottom of the key, upwards? 
 
Ed Foote RPT 
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html
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