<html> <body> 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</body> </html>