Author: Campana
Date: 2012-08-14 12:01
I too have just changed the thumb rest to an adjustable one, which meant repositioning the holes, in grenadilla wood. I used a 1.5mm dia bit in a pillar drill. No problems, all went smoothly and accurately but only one hole is secure, in the other the threaded contour just crumbled away. Perhaps there are parts of grenadilla wood that are less able to hold a thread than others? I shall have to plug with a fibrousy soft wood, set in with white wood glue and screw in again.
You're right about getting these square ended screws started, what a pain.
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