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Re: Tone holes

Author: Chris P
Date: 2012-08-29 18:18

Clean them with alcohol to degrease them, then apply superglue with the tip of a (sharp) scalpel blade and leave it to harden fully.

Then with a levelling tool made from a metal rod turned down to the required diameter with the face machined perfectly flat and emery paper superglued onto it (600 to 1000 grit), go over it by hand until the bedplace is perfectly level.

Then scrape off any excess hardened glue around the bevel or in the tonehole with a sharp scalpel to tidy it all up.

If the nicks are shallow, you can deepen them slightly to make the superlue wick in deeper by cutting them deeper with a scalpel blade.

If the nicks are large, then you'll have to fill them with both superglue and wood dust, then trim off the excess with a scalpel blade and level them with the levelling tool.

If the crown of the bedplace has become too wide from levelling, you can ream out the inside edge to thin it down using a spherical reamer (of the required size) or countersink with sharp cutting edges. The bedplace should be no wider than 0.5mm but not excessively sharp so it won't cut into the pads.

Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.

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