I finished the dimpling of the left fuel tank skin. It required using the DRDT and my ancient (1988) Avery C-Frame tool. All turned out well. I finished the assembly of the left tank attach bracket sub-assembly. I put all the left tank parts aside and began assembly of the right tank. I deburred the tank skin, final drilled the skin stiffeners and main ribs. I'll bring the right tank to the same level of completion before I begin assembly with sealant.
Left tank attach bracket sub-assembly
Various left tank parts drilled, countersunk and dimpled