Using your MarshallTown 8 - inch blue steel taping knife is a breeze. First, grab it by the comfortable plastic handle. When you're working on taping jobs, especially in corners, use the tapered blade to get in close and apply the tape smoothly. It's so lightweight that you won't feel tired even after long - term use. For safety, always make sure your hands are dry when holding the knife to prevent slipping. After each use, clean the blade with a soft cloth to remove any tape residue. Don't expose the knife to extreme temperatures or moisture, as this could damage the steel blade or the plastic handle. With proper care, your taping knife will serve you well for a long time.