There are a number of mandatory tools that will soon be required which I've been researching on the web. Most of them are available at Aircraft Spruce. However, they did not have a hand nibbler. Found an Eclipse 900-215 hand nibbler at ToolKing.com. While surfing that site I also found a Mechanics M662 pneumatic metal shear. Price was right so . . . it will soon be part of my tool collection.