I am repining a bridge and because the bichords are a strange in between size (about 9 1/2), I need to enlarge the holes to accommodate a #10 pin. I have not had much luck doing this in the past in a clean way and am wondering how others approach this. My thought is to reinforce the bridge cap with a clear coat of epoxy first before drilling it out, reaming out any excess that might create large globs inside the hole before it sets up. Any thoughts on this? And what is the best way to approach redrilling an existing hole: high speed, low speed, by hand? David Love davidlovepianos@comcast.net
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