Unique Design - ToughBuilt excels in innovation and our Utility Knife Blades work with all utility knives. They have a distinctive trapezoidal cutout that securely fits into the scraper utility knife for a reliable hold. Crafted from durable carbon steel for lasting durability, these blades offer precise cuts on a wide range of materials like carpet, cardboard, drywall, leather, rubber, vinyl flooring, and more.