Bi-Metal is formed by welding highspeed steel edge and spring steel, having the benefit of both types: Safety & Longer Life.
IRWIN® Bi-metal Blue Blades are safer since they will not break under normal working conditions, and they help reduce the risk of injury from breaking or shattering blades. And, with the blades lasting longer than traditional carbon blades, they result in fewer blade changes which means fewer accidental cuts.
Spring steel allows the blade to bend without accidentally breaking
- LAST 3 TIMES LONGER*
High speed steel hardened cutting edge stays sharp 3X longer than traditional carbon blades which means more cuts for the money
- TRAPEZOID BLADES FIT MOST KNIVES
Two-notch blade design fits most utility knives
*vs. traditional carbon blades