An easy way to remember the formula is "mic minus": if you're starting with the micrometer reading, always subtract first. Subtract "FIVE" for "WIRE", "TEN" for a "PIN" (center pin), then divide by two. --Cy-- SHUSTERpiano.com ----- Original Message ----- From: Michelle Smith I'm new at this game Avery so please tell me if I'm wrong. I just measured the scrap string I took off the piano at .041. Am I correct that this would be a size 18? -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20060603/a4dea11d/attachment.html
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