More photos of the process of attaching the piano hinge on the toolbox. During the fitting, placing clecos and drilling I started to develop a rhythm. I was just getting ready to rivet the hinge in place when I noticed how cold the hanger had become. The wind is out of the north and over the afternoon it got colder. I have a small space heater but when I turn it on it runs non stop. I had turned it off and did not notice the cold until my feet started to complain. I will finish up next week and start on the classroom kit. I think I will buy some scrape aluminum and practice my riveting.