Steps 3-4. Final drilled #19 holes in Fwd Skin and nutplate screw hole in Main Skin. Deburred Skins and drilled holes. Steps 5-6. Dimpled #19 holes, using #8 dimple die, in Fwd and Main Skin. Step 7. Dimpled nutplate rivet holes in Main Skin using 3/32" die. Step 8. Dimpled nutplate holes.
