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 100 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 Introducing WORKPRO Knife Blades: the ultimate solution for all your cutting needs. These versatile blades are designed to cut through a variety of materials with ease, making them perfect for use in industrial, household and DIY applications. Our blade bundle includes flat, straight and square razor blades, giving you a wide range of options for box cutters, glass scrapers, utility knives and more. Each pack contains 100 refill blades, ensuring that your cutting needs are covered for a long time. Made from high-quality stainless steel material, these razor blades are durable and long-lasting, ensuring minimal blade changes. Plus, the single edge razor blades come in a heavy-duty design, making them perfect for tougher cutting requirements. Not only do these blades offer superior sharpness, but they are also designed with safety in mind. The straight edge razor blades have a protective coating to prevent accidental cuts while changing blades. The WORKPRO knife blades are the perfect addition to your tool collection, providing you with the performance and durability you need for all your cutting needs. Shop our razor blades today and experience the difference a quality blade can make.