The Rambo of Vietnam (MACV-SOG) Military Assistance Command, Vietnam - Studies and Observations Group multitool. Small, sturdy, and lightweight for keys, you can wear it around your neck, thread beads through it, and make it a necklace. The opener, screwdrivers, extractor, and keys on the beret work. With the carbide sharpener, you can sharpen thin-blade knives, such as Victorinox, with the cutter you can cut instantly, fishing line - thin rope, and even friction can be used for grinding. Also, with a magnetic adapter for screwdriver bits that will fit into the extractor hole, you also have a multi-screwdriver. It is important to note that it will not be considered a weapon, in case of a police check or at the airport, as it lacks a blade.