The primary use of a stapler is to fasten multiple sheets of paper together by driving a metal clasp (staple) through the layers. This office tool is essential for organizing documents, reports, and other paperwork. Staples provide a secure and permanent bond, making it easy to collate materials for presentations, meetings, or filing. Staplers come in various types, including manual, electric, and heavy-duty models, catering to different volumes of work. Proper use of a stapler improves productivity and ensures that important documents are kept together and easy to handle.