Jason-- To "nondestructively" measure tuning pin holes I might suggest that you use an interior gauge such as made by L. S. Starrett. [You can find these units on their website] Each gauge features a split ball which is expanded until it touches the hole walls; then measure the diameter with a micrometer to get your size. Very convenient and a good, traditional design. Cost about $85 a set as I recall. Dave Talcott -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20060801/4f1d7562/attachment.html
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