Using the DeWalt DWHT83194 trigger clamp is easy. First, open the clamp by pressing the trigger. Place the object you want to hold between the jaws and release the trigger to secure it tightly. When using, make sure the object is properly positioned within the jaws for a firm grip. For maintenance, keep the clamp clean and dry. Avoid using it in extremely wet or corrosive environments. If the clamp gets dirty, you can simply wipe it with a dry cloth. Don't force the clamp beyond its capacity to prevent damage.