Last few details on the cabin frame; each side needed six more bolt holes drilled, two of which needed to be tapped. Completed the right side and decided pictures would be appropriate so ... the left.
The fuselage skin had two prepunched holes, using them I slowly drilled them to the appropriate size for an AN509-8R8 screw. After dimpling the skin and counter-sinking the angle underneath I tapped both holes, The two holes on the right (see image three) were predrilled when I fabricated the angle attachment. Those were drilled to size for an AN509-10R12 and counter sunk as well. As you can see in the first image the forward screws show on the outside, but the aft bolts are under the skin.