In the last year i added many new tools to my initial starter kit.
Pneumatic Angle drill from ATS
Skin roller tool
Oops rivets
mix of hardware
mix of various rivets
additional countersinking cages
Pneumatic nibbler from ATS
Precision calipers and measurement tools
Wrench sets (imperial) different sizes
Dimple dies (smaller than the original from ISHAM), smaller squeezer sets,
Gas masks from Draeger to be used with very aggressive AkzoNobel primer
Clecos...a lot of clecos
clamps different sizes
Scotchbrite 1"" wheels and Scotchbrite Pads by the dozen
Different deburring tools and countersinking cutter
Manual rivet squeezer
Pneumatic rivet shaver (again an overkill, but who knows, maybe it will be of some use soon or later)
Inspection Camera