Learn About Plastic Coil Binding Pitch

Learn about Plastic coil binding Pitch

What tooth pitch is right for your book? We follow some common international standards to let you better understand what tooth pitch is suitable for Plastic coil binding

The common hole / punch pattern is 4: 1 pitch (4 holes per 1 ″) spiral binding; or sometimes referred to as 6mm. 4: 1 means there are four holes per inch on the binding edge of the document. The holes / punch pattern for this style are usually either round or oval shaped. Elements for binding documents with 4: 1 pitch spiral coil are available in sizes ranging from 6mm up to 50mm in diameter. Allowing binding documents that are up to two inches.

3: 1 pitch (3 holes per 1 ″) spiral binding / coil is less common. Designed for use with the hole pattern used in Wire Binding (twin loop, double loop) or with GBC Proclick. 3: 1 pitch spiral coil is easier to use for large diameter books because there are less holes / punch patterns to run the spiral / coil through. Spiral binding elements for this hole pattern are available in sizes ranging from 6mm up to 50mm.

Not as common as 4: 1 pitch spiral / coil, some prefer to use 5: 1 pitch (5 holes per 1 ″) spiral binding / coil or referred to 5mm they interchange. With five holes per inch, 5: 1 pitch spiral / coil is tightly bound and provides a cleaner appearance. The limiting factor with 5: 1 or 5mm pitch is that it only binds up to 25mm- not a good choice for larger documents as they are more difficult to bind function as a document.