How do you predrill the holes for the screws? It has been a while, and I can't remember what I did previously. I have the tapered bits from Lee Valley, but the screws are still too tight in the test piece of pinblock. The taper is all wrong for the 'fat' screws. I was thinking, of double drilling, part way with the thicker one, then go with a smaller size, same as the shaft thickness. Other question is, I am going to be using #1 pins, and want to use 'the Nossaman' system of double drilling, rather than using the air stream to cool the bit. What size for the first and second passes? John Ross Windsor, Nova Scotia. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090901/c464f7f2/attachment.htm>
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