Riveter head mod

Plan Note:

The riveter head required modification per the plans to create a domed head out of a flush head rivet. The plans suggest the tip needs to be annealed to be drilled but the tip on the Harbor Freight Hand Riveter drilled without being annealed. The initial attempt with a 1/4", 135 degree drill bit was too deep and created more of a dome than we deemed desireable. Some of the tip (.015?) was remove and a 5/16" bit was used to shallow out the depression. This change created a flatter rivet head.