Irwin Knivblad 18MM bi-metal (50)

Use

Bi-Metal ''Blue'' crack-by leaf. The revolutionary crack-of blade that lasts three times longer. The blades are shatter-free and therefore very safe to use, making them suitable for universal use in most materials. The new controlled kink-af technology makes it safe to break off a glow without it popping.
Why use Bi-Metal ''Blue'' break-off blade:Lasts three times longer: More cuts per blade Universal use: Can be used in most materials
Shatter-free: For optimal safety
Controlled kink-off:
The only kink-off blade
that doesn't crack (crack and break off with your fingers)

Link to manufacturer:
Irwin