We're in the middle of a heat wave in SoCal and the temperature reached about 104F today. I tried starting early in the morning, but even doing that it got hot fast. I managed to countersink the trailing edge pieces using my drill press. In the past I've always just held the drill and TE in my hands, but I'm glad I took the time to set this up on my drill press.
Jig from Cleaveland Tool holds the TE parallel to the horizontal for countersinking
