I finished drilling all the wing tip fairing anchor nut retaining strip screw holes and then drilled all the anchor nut rivet holes followed by deburring. Then I countersunk the wing tip fairing for both the screw holes and rivet holes. Finally I fitted and drilled the wing tip fairing end ribs followed by countersinking and deburring of the parts.
Wing tip fairing anchor nut retainer strips drilled for anchor nut rivet holes
