Brief Description: Preparation for nutplate riveting on the Left main
Before riveting the nutplates, all the holes need to be deburred. The row of holes close to the main spar web is too close to allow the hand deburring tool to be used normally. Anyway, the holes have only a little burr to get rid of so the bit alone, twisted between your fingers is all that is needed.
Tomorrow I’ll buy some zinc chromate to treat all those countersink holes.
