Equipped with five premium high carbon steel blades, ToolPro's 7-inch Retractable Metal Utility Knife offers sharpness and longevity for clean cuts on materials such as cardboard, drywall, and plastic. The interlocking nose securely holds the blade in place for safe operation, while the magnetic blade retainer prevents accidental blade drops when the handle is opened. Extra blade storage in the handle ensures you have spares ready when needed, making it a practical tool for professionals and DIY enthusiasts alike.