Burn-in Lacquer Sticks are a time-saver for filling in the ends of fret slots in an Ebony fingerboard. The black lacquer wax can be melted in the hole with a hot chisel or knife heated by an alcohol lamp or a conventional soldering iron. (Avoid scorching the wood.) Also available in a clear stick for use in fingerboards other than Ebony or wherever transparent fill is needed.
These sticks are extremely fragile. Our shippers take every reasonable effort to protect them, however, we can not guarantee that you will receive them in one piece. This should not be a problem since you will only be using a small part of the stick in normal usage.
How to use a Burn-in Lacquer Stick for filling gaps.