Step 13: Inlay the fret markers
First choose a marker. I chose a wooden dowel for availability, and because the inlaid turquoise was flashy enough by itself. The dowel was 3/16" in diameter. Very, very, very carefully I marked and measured exactly where the markers would be and drilled holes with a drill press. I strongly recommend a drill press for this step, as a lot of work has already gone into the instrument and a drill press minimizes the possibility of catastrophic failure. I drilled the holes only about a quarter to a half inch deep.
Once the holes were drilled I cut the wooden dowel down to size for each hole, so there was enough poking out that I could pull it out with my fingers. Once all the holes had matching dowels I applied epoxy to the dowels, inserted them into the holes, and wiped the extra glue away with a damp cloth. After the glue dried I sanded the dowels down very gently with a dremel as close to the surface of the fret and neck as I could.
A final sanding will be applied later, so it does not have to be perfect yet.