The Leatherman foil cutter is an extremely sharp, small, curved, serrated blade that is found only on the Juice Pro model. It is tucked in behind the corkscrew, and easy to overlook!
Use the foil cutter for cutting thick metal foil, leather, or other thin materials. You can also use it as a skinning blade when working with small game, though it's probably too small for field-dressing deer or other large game..