Ahoy Swaylockians,
I use a 1/2 inch flush trim bit to rout out the hole for my singlefin FU boxes. The bearing on the top of the router bit rides along the jig template. Since the bearing rides along the jig as a guide, the bit always has to be set at a 1 inch cutting depth. However, I cannot eliminate the stringer with the bit set at this depth or else it splinters. I have been using a drill with a 5/8 forstner bit to eliminate the stringer down to just under 1 inch before I clean up the outline of the hole by using the router and my jig. I have been getting good clean results but this process is somewhat time consuming and sometimes the forstner bit wants to wander to one side of the stringer or the other. Is there a better way of doing this without building a new jig that follows the base of the router? Thanks ya'll and may the waves be pumping wherever you are!