Using the DeWalt DWHT55528 21 - inch Spring Steel Flat Bar is a breeze. For prying, place the extra - wide end under the object you want to lift or separate, then apply pressure. You'll get great leverage to do the job efficiently. When it comes to pulling nails, use the pointed, beveled end. Slide it under the nail head and pull. The multiple nail pullers on the bar give you options depending on the nail's size and position. As for maintenance, after each use, wipe the bar with a clean, dry cloth to remove dirt and debris. Store it in a dry place to prevent rusting. Be careful not to use it for tasks beyond its capacity as it might damage the bar.