Brief Description: Use Jig to Drill Instrument Attach Holes
I purchased a drill jig from Aircraft Spruce to accurately drill the instrument attach holes for each 3-1/8" punched hole. This is a nice device that clamps securely to each cutout and allows you to drill consistent holes for each instrument. I only drilled the holes for the Dynon EMS unit for now.
Drill jig clamped to first hole and attachment holes drilled
