Twister T2 Nitrided Bed KnifeReplacement Twister T2 Nitrided Bed Knife Note: * New FoodSafe Nitrided Blades ship standard with all Twister trimming machines (T2, T4, and T6). Nitrided blades are high carbon, hardened steel blades that surpass the quality and durability of most standard blades on trimmers. Nitrided Blades are FoodSafe; the materials used are approved for contact with food products. Hardened steel Increased tensile strength Increased corrosion resistance (no rust)