Irwin® Bi-Metal, Carbon, Snap And Utility Blades Are Used For A Variety Of Cutting Applications.
Standard Utility Blades and Hook Utility Blades are made from carbon and fit all Irwin® utility knives. Bi-Metal Snap Blades and Bi-Metal Safety Blades are made by a patented process of combining spring steel with high-speed steel for lasting durability. Bi-Metal Blue Blade™ Utility Blades offer superior flexibility and stay sharper up to 3x longer than traditional carbon blades. Snap Blade Refills offer easy one-touch dispensing in a convenient carrying case.