I used the C-frame to dimple most of the skin. I used the pnuematic squeezer to dimple most of the ribs. I used the countersink drill to countersking the trailing edge wedge. Notice in photo I drilled and clecoed the wedge to the workbench. This was so the tip of the countersink bit would have a hole to go into and hold it steady for the countersink. I flipped it over and clecoed it into the same holes to do the reverse side.
