Drilling the string holes, make yourself a curved block to fit the bottom
of the bridge to use for clamping the bridge while drilling. Before drilling
the holes check to see if you have sufficient margins on the fingerboard.
It is possible to have accidentally made the fingerboard a little narrow.
If this is the case alter the string spacing at the bridge. When you are
satisfied that your string spacing is correct mark the location of the
string holes using the center of the bridge for location. Now drill the
hole with a number 50 drill. Mark the depth you have to drill with masking
tape on the drill. Run a low E string through the holes to clean them out
and if they string does not enter smoothly remove a little wood,
the string must feed in easily. Sand and clean up and you are ready for
the tie block facing.