Using your DeWalt DWHT80267 adjustable wrench is easy. First, select the right size for your job. Open the jaws by turning the adjustment mechanism until they fit around the fastener. Then, turn the wrench clockwise to tighten or counter - clockwise to loosen. Make sure the jaws are firmly gripping the fastener to avoid slipping and damaging the fastener or the wrench. When using, keep your hand towards the flared end of the handle for better control and to prevent your hand from slipping off. For maintenance, after each use, wipe the wrench clean with a dry cloth to remove dirt and debris. If it gets wet, dry it thoroughly to prevent rust. You can also apply a light coat of oil to the moving parts to keep them working smoothly. Store the wrench in a dry place to ensure its long - term performance.