Used files, emory cloth and scotchbrite to edge finish and deburr the F-712A and B bulkheads. Cleco'd them together and match drilled holes. Disassembled and deburred. Used scotchbrite to scuff all surfaces. Used the squeezer to dimple the holes for rivets with flush head on aft side.
Washed these parts and the F-709 and F-710 in Dawn dish soap and warm water and set out to air dry. After drying I primed with NAPA 7220 self etching primer.
