A hole punch, also known as a paper punch, is a tool used to create holes in sheets of paper. The most common type of hole punch is the single-hole punch, which is used to make a single hole in a sheet of paper. AWLS is an acronym for 'Architectural Wire Line System', which is a type of hole punch that is used to make multiple holes in a sheet of paper. This type of hole punch is often used in offices and schools to create documents with multiple holes for filing or binding.