BEFORE enlarging the holes!!!
Before enlarging the holes for the blind nuts, we fit the drilled gear. This allow small corrections to any misaligned holes. If we drilled the enlargements and fitted the blind nuts first, then the gear holes would have to be opened to allow the bolts to fit. This detracts from a professional appearance. In this case, the jigs ensure that everything lined up perfectly, so we remove the gear and open our six holes on the fuse for blind nuts. Here we are pre-fitting the gear.