Using the DeWalt DWHT55131 wrecking bar is easy. For prying, place the rounded 90° end under the object you want to lift or separate and apply force. When pulling nails, choose the appropriate nail - puller on the bar and position it around the nail head, then pull steadily. When using the pointed beveled ends, be careful as they can penetrate surfaces quickly. Always wear safety goggles to protect your eyes from flying debris. After use, clean the bar with a dry cloth to remove dirt and debris. Store it in a dry place to prevent rusting. Regularly check the bar for any signs of damage, such as cracks or bends, and if found, stop using it immediately.