Using your DeWalt DWHT80269 adjustable wrench is easy. First, select the right size for your job. Place the jaws around the fastener and adjust the movable jaw until it fits snugly. Then, turn the wrench in the direction you need to tighten or loosen the fastener. When using, keep a firm grip on the handle, especially with the flared end that stops your hand from slipping. Avoid using excessive force as it may damage the jaws or the fastener. For maintenance, after each use, wipe the wrench clean with a dry cloth. If it gets dirty or oily, you can use a mild soap and water to clean it, then dry it thoroughly to prevent rust. Store it in a dry place. Check the laser - etched markings regularly to ensure accurate adjustments.