Constructed of high-quality carbon steel for extra durability and long life. With HRC 58~64 hardness, these scraper razor blades stay sharp longer compared to ordinary blades Sharp Cutting Edge: WORKPRO single-edge blades feature a sharp, long-lasting edge, delivering optimum cutting performance. The steel backing provides a better feel and control, great for general scraping and cutting Universal Razor Blades: The razor blades are single-edged, with a size of 1.53-inch length, 0.77-inch width, and 0.009-inch thickness. These replacement blades are designed to fit all standard razor blade scrapers and box cutters Convenient Packaging: Each pack includes 50 scraper blades, packed inside a transparent case for convenient blade storage or easy retail display. All blades come individually wrapped and protected in paper for added safety Wide Application: These single-edge razor blades are perfect for scraping and cutting projects such as removing paint, labels, stickers, and decals from tiles, glass, windows, and doors, or for quickly opening packages When it comes to cutting and scraping, having sharp and reliable utility knife blades is essential. The W018057AE Razor Blade Refill is designed to provide outstanding performance and durability, making it an ideal choice for any worker who needs to maintain a sharp edge on their cutting tools. These blades feature a single edge design, ensuring a clean and precise cut every time. They are made from high-quality stainless steel, which makes them durable and resistant to rust and corrosion. This means you can rely on them to last through even the toughest projects. The W018057AE Razor Blades Refills are versatile, making them suitable for a wide range of uses. They work perfectly with razor blade scrapers and utility knives, providing a smooth and efficient cutting experience. They can also be used with straight razor blades, safety razor blades, and scraper blades, giving you even more flexibility and control. Whether you're working in a construction site, workshop, or DIY project, you need a set of razor blades that will get the job done right. The W018057AE Razor Blades Single Edge pack includes 100 blades, ensuring you can maintain your cutting tools for a long time to come. Order yours today and experience the power of reliable and versatile utility razor blades.