---------------------- multipart/alternative attachment Hi List. Rebuilding a 1875 Zeck square grand. Replugged old (case integrated) pinblock with about 200 maple pinblock material plugs, West System. (pant pant) Plate back on after seating/fitting/setting bearing. Narrow, and I mean narrow, bushingless plate tuning pin holes. Drilling through plate for hole accuracy. Need to put in #1 gauge tuning pins, even then a tight fit. Experiments with torque of #1 tuning pins in several different drill bit holes in pinblock material outside of piano suggest using a straight old brad point 1/4" - .250 bit for optimum torque. 1/64 smaller feels tight, 1/64 bigger feels loose. Experiences with drilling maple pinblocks for #1 gauge tuning pins or suggestions in general most welcome. Thanks in advance. Kurt ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/c4/cc/43/30/attachment.htm ---------------------- multipart/alternative attachment--
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