What is Wire-O Binding?
Wire-O™ binding, also called wire binding and Double-O binding, is a method for binding documents. This binding method is inexpensive and is typically used in North America for binding things like books, booklets, calendars, spirals, day planners and other small readers. There are a few things to know about Wire-O™ binding before purchasing a machine or having something bound. To bind a book using the Wire-O™ binding method, the document is placed into the machine and holes are punched into one side, similar to a large three-hole punch. Some binding machines punch three holes per inch (2.5 cm), and others punch two holes per inch. These are called pitch ratios and are referred to as either a 2:1 Pitch or a 3:1 Pitch. The holes punched can be square, round, or rectangular, but are most often round. If the Wire-O™ binding machine is a personal-use apparatus and the document to be bound is large, the machine may not be able to punch through all of the pages in the document at once. To com
