Using this Makita round punch is quite straightforward. First, make sure you have the right 1/4 - inch (6.5 mm) round die (sold separately). Then, install the punch quickly and easily onto your Makita Cordless Metal Hole Punch model XPP01. When you're ready to punch holes, select the metal plate within the recommended thickness range - 5/64 inches (2 mm) to 5/32 inches (4 mm) for general steel and 1/8 inches (3 mm) to 5/32 inches (4 mm) for stainless steel. Place the metal plate where you want the hole and use the tool to punch. As for maintenance, after each use, clean the punch to remove any metal shavings. Store it in a dry place to prevent rusting. Also, always check the punch for any signs of wear and tear, and replace it if necessary. Remember, using the punch within the specified material and thickness limits will ensure its long - term performance.