More deburring and countersinking the wing - 3.5 hours

I decided to use 3/32" tank dies on the ribs and wing walk doubler (with regular dies for the skin). As such I double checked the countersink needed and came to the conclusion that it is the same depth of countersink that is needed for the thicker 0.035" skin. (As the wing walk doubler is 0.025" thick).

I ended up completing all the wing spar countersinks. Wow...what a lot of work. It's fun a first, but becomes very repetitive. I decided to re-tackle deburring for a bit before calling it a night.