I plan on mounting my Standard Horizon Ram4 Remote Mic cable on my pedestal. In either one of the 2 highlighted areas shown here. Both are dependent on easy enough access inside the pedestal. I need to know which drill to use that will cut through the fiberglass and then the plywood backing without damaging the fiberglass itself.
When I had to widen the original VHF mounting hole to fit a small shelf to fill the space, I had a heck of a time just cutting down the edges of the existing hole, probably had dull dremel bits but I don't want to chance damaging the 1 inch round hole I need for the cable end to fit into.
Thank you for the guidance.

When I had to widen the original VHF mounting hole to fit a small shelf to fill the space, I had a heck of a time just cutting down the edges of the existing hole, probably had dull dremel bits but I don't want to chance damaging the 1 inch round hole I need for the cable end to fit into.
Thank you for the guidance.

