Based on the scratches and wear we see on incoming knives, this seems to be the implement that is used most often, by most Swiss Army knife owners. It is a handy sharp edge that can easily cut vegetables, sandwiches, paper, wood, and even soft metals.
WARNING: The main blade on many Wenger Swiss Army knives is non-locking. If you push in the wrong direction, the blade will close into the body (possibly endangering fingers). Be careful when using it with a great deal of force!
Uses: The main blade on 85mm Wenger Swiss Army knives is 65mm (2 1/2") long, with a cutting edge that is sharp for about 54mm (2 1/8") of that length.