What is the best way to determine the correct size tuning pin to when restringing a piano? The original pin on a Steinway M is 3/0 x 2.5. The over-all "feel" of the original pin is tight and consistent across the block. The torque reading on the original pin is consistent at 40 In-Lb while flattening the wire. The torque reading on the original pin with no string attached is about 100 In- Lb. I tried a 3.5. X 2&3/8. The torque reading ( without a string) on the larger pin is just about the same as the original pin but not quite 100 In- Lb What is the best way to determine the correct size tuning pin to when restringing a piano? Should I use 3.5 x 2.5. or 4/0 x 2.5?? Thanks... Bill Fritz, St Louis -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110818/bd778fa5/attachment.htm>
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