>Ron, >Good ideas. Actually the piano is coming in more a complete restoration >next summer in which I'll have full access from underneath the piano and >punching the material back up should be more probable. Hi Tom, Then that's probably your best bet. If the pin involved spans two unisons, it should be reasonably ignorable until then. >I'm still amazed at the rigidity of this material. I thought this would >be a quick drill out and install time. Lesson curve continues! >Tom Servinsky Those little hummers are hardened steel, similar to a high speed steel drill bit. You aren't going to cut them out with any edged drill bit on the planet that I'm familiar with. It would take aluminum oxide or diamond abrasives, and flooding the area with coolant would be a tad counterproductive. It does surprise me that it won't drive on through though. It seems pretty unlikely to me that the holes in the plate wouldn't be drilled through, but it's possible. I had an SF in the shop about seven years ago, but I don't remember if that's the case or not. There's a lot of spring to these pins, and it takes a pretty good lick at best to get them to move in the hole, so even with a clear through hole it's hard to move them. You're right. Probably best to wait for the scheduled rebuild. Ron N
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