Irwin Bi-Metal Heavy Duty Replacement Blade 2.5 in. L 5 pc

Features patented Bi-Metal technology that sets new standards of performance. UNBREAKABLE: Spring steel body delivers superior flexibility to prevent breaking (under normal working conditions). LASTS LONGER: High speed steel cutting edge stays sharp longer than traditional carbon utility blades (tested on 20lb recycled paper). Fits most utility knives.