1.1 Hours -
It took me just over an hour to finish the edges and deburr the holes on half of the rudder stiffeners (the eight stiffeners for the left skin). After cutting them, the edges were pretty rough. To smooth the edges and radius the corners, I used the Scotch-Brite wheel. This wasn’t difficult, but it took some time to even out the taper cut on the aft end of each stiffener. Once all of the edges were cleaned up, the holes were deburred with my Avery Deburring Tool.
I’m probably going a little overboard with finishing these pieces, but they look nice! The pictures below compare finished stiffeners with unfinished one.

The forward ends of the rudder stiffeners don't have a taper. The two on the right are finished, the two on the left are not.

The aft ends of the rudder stiffeners are tapered so they don't interfere with the skin or each other. The two on the right are finished, the two on the left still have some work to be done.











