This is the Modeler's Super Saw by Atlas Model Railroad.
This is the Atlas Model Railroad Super Saw. This all-purpose saw is ideal for cutting Atlas Super-Flex Track, and for making short track-filler sections. Extra-fine teeth are long-lasting and make razor smooth cuts in wood, plastics, nickel silver rail etc. This is a critical tool that every model railroader should not be without!

FEATURES:

All purpose saw
Ideal for cutting Atlas Super-Flex track
Extra fine teeth make smooth cuts
Will cut wood, copper, plastic, formica, aluminum, masonite, and most non-ferrous metals