A knife sharpener and a lot more.
Tungsten-carbide bonded to fine, medium, and rough sharpening surfaces,effectively sharpens any knife.
Chisel point makes tool useful for hacking, prying, scraping, splitting, cutting sheet metal, or other rough jobs that would harm a knife.
Leather-sheath handle folds out of the way for use as a sharpener, provides a convenient way to hold tool when used as a chisel or other tool.
Leather lanyard holds tool in sheath and secures it to belt or ring.