Irwin Utility Knife Bi-Metal Blade 50pk

Irwin Utility Knife Bi-Metal Blade 50pk

The IRWIN Blue Blade bi-metal utility blades stay sharper 3X longer* than traditional IRWIN carbon blades. As the name implies, bi-metal blades are produced through a patented process of combining spring steel and high speed steel, each with its own attributes and benefits, making them virtually shatterproof.