The TFF-1 Tactical Fighting Folder This Pin-Up custom engraved one is a tough beast of a knife that is built to tackle fixed blade duty tasks. The TFF-1 has a minimum of parts, less to go wrong, and features a simple open-built design for ease of cleaning and quick drying. Tip-up carry pocket clip that is sized appropriately for this folder. The spear point style blade is S45vn steel with hollow grinds and has a tumbled oxide finish. The TFF-1 is an ambidextrous one-hand opener and two-hand closer that is up to just about any challenge. Comes with a waterproof case.