Made the FL-706A from angle stock per the plans. Cut the part to size on the bandsaw, edge finished with a file, then final finished on the scotchbrite wheel. Laid out the hole pattern and drilled #30 on the drill press. Edge finished the FL-706B with file and scotchbrite wheel.
Cleco'd the hinge on the spar and countersunk the bottom flange .007" deep for skin dimples. Used the squeezer and dimpled the spar line on the bottom skin.
Reassembled the flap and drilled the top skin to the skeleton.