Cup spray guns are versatile tools widely used for painting and finishing tasks in industries like automotive, woodworking, and home improvement. A cup spray gun consists of a paint reservoir (or "cup") attached directly to the spray gun, which holds the coating material. This design allows for easy maneuverability and is ideal for smaller projects or detailed work. Cup spray guns are popular for their convenience, precision, and adaptability to various materials, including paints, stains, lacquers, and primers.