Irwin® Bi-Metal Utility Knife Blade With Dispenser stays sharper three times longer than traditional carbon blades.Irwin® Utility knife blade with dispenser is made of bi-metal for durability. Knife blade features electron beam weld joins materials together and spring backing steel for blade flexibility and non-dangerous shattering, sold as 50 per pack.
Material: Bi-Metal
Welded for sharp edge and flexible body
Electron beam weld joins materials together
High speed steel edge can be heat treated to higher hardness for longer life and edge sharpness
Spring backing steel for blade flexibility and non-dangerous shattering