A very productive day for building. Riveted the W1204G-R Hand Hold and the W-1213-R Tip Rib to the wing skeleton. Primed the W-1204C Wing Tip Bottom Skin, W-1204B Wing Tip Aft Skin and W-1204A-R Wing Tip Fwd Skin, and then riveted them to the skeleton. Deburred, primed and riveted the W-1204F-R Aft Wing Tip Rib and W-1204E-R Fwd Wing Tip Rib. Cut the Wing Tip Access Opening for the Nav/Strobe lights in the W-1204D-R Wing Tip Close-Out using a rotary tool. Bent the tabs of the Wing Tip Close-Out per plans. Deburred, primed and riveted the Close-Out to the wing. Match-drilled #30 holes in the W-1204H-R Wing Tip Trailing Edge, deburred the holes, and primed and riveted the piece.