A binding machine is a device used to securely fasten together multiple sheets of paper or other materials. It is commonly used in offices, schools, and print shops to create professional-looking documents, reports, or presentations. The machine can use various binding methods, such as spiral binding, comb binding, or thermal binding, depending on the desired finish and durability. These machines come in different sizes and capabilities, ranging from manual models to electric versions that can handle larger volumes. Some binding machines also offer features like adjustable margins and built-in cutters, making it easier to create customized documents for specific needs.