Wire binding

There are three common hole patterns used in binding documents with double loop wire.

The 3:1 pitch hole pattern is most commonly used for binding small documents with double loop wire.

Although a 2:1 pitch hole pattern is most commonly used for binding larger documents, it can also be used for smaller books.

However, a couple of manufacturers make special small sizes, with diameters down to 6.4 mm (1⁄4 in).

However, when Ibico was purchased by the General Binding Corporation, this type of supplies was discontinued.