Found a post on VAF regarding drilling holes for conduit on a QB wing. Picked up a set of step drills at Harbor Freight that have a ¼” hex drive. Also picked up some 12” extensions. After using a long #40 drill to go thru all of the wing walk ribs, I used a step drill to open the first hole to ½”, followed by a ¾” step drill. I added a 12” extension and switched back to the ½” for the next hole, followed again by the ¾” step drill. Kept swapping step drills and adding extensions until I had all of the inboard ribs drilled to accept the conduit. I then moved the fuselage out of the shop and into the garage. Nancy helped me remove the right wing from the cradle and lay it on the work table. Now I can start riveting aileron brackets and the aileron fairing.
