<HTML>Richard.Brekne writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT= : 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">You say you drill out of piano.=   How is it you insure that the pin holes are exactomundo - right on th= e button-no bones about it - perfectly in the right spots each and every tim= e. </BLOCKQUOTE> I use methods similar to those already posted by others. Set of center punch= es to mark the holes. if I err, it's on the side of very slightly too small = a punch, set towards the keyboard side of center. I don't put much tip on th= e tuning pins, and this gives me a little insurance against them rubbing the= plate. Incidentally, I've tuned pianos where they DID rub the plate, and I = didn't find it a problem. I think the most important part is the careful fit of the block to the flang= e. We try to have almost continuous contact along the flange, clamp the bloc= k to the plate (vertically and horizonally) to insure good location for the = screws, and leave the clamps and screws in place while marking for the pin h= oles. After it's drilled, we screw it back to the plate to check the holes. I'm su= re I'm the only person in the world who has ever missed (wandering bit, hard= spot in the block, etc.), so I'll just confess if it's a tiny bit off, I en= large the plate hole slightly, in the direction I need to, with a round file= . It doesn't show. If it's off more than a hair, I plug and re-drill. When a= ll is satisfactory, we spray the plate. Bob D</HTML>