Stanley Carpet Knife Blade 11 530 2.25 Inch Double Edge Replacement Blades (100 Pack 0.015 Inch Thickness High Carbon Steel Flooring Shearing) Crimpers Code Compliant Full Round Head: Provides Code Compliant Full Round Head: Provides superior pull through resistance to meet structural building code requirements for shear wall and subfloor framing 300 lbs of uniform mechanical force over a generous 20 foot vertical lift profile Individually Wrapped Safety Packaging: Each blade is encased in individual wrapping to prevent rust formation and safeguard installer hands during tool loading The Stanley 11 530 High Carbon Steel Double Edge Carpet Knife Blades 100 Pack is an industrial grade floor covering replacement supply engineered for high volume commercial carpet installation and material trimming