More than 90% of the spiral bound documents that you see on the market are bound with 4:1 pitch colorcoil binding. However, there are actually several different pitches of coil available for spiral binding. Each of these pitches have specific applications for which they are best suited. This article will provide a quick overview of the major different options for spiral coil hole patterns and their applications.
4:1 pitch color coil is the most commonly used pattern for document and presentation binding. This spiral binding hole pattern has four holes per inch and is fully compatible with 6mm pitch supplies (primarily used overseas). Four to one pitch color coil binding is available in sizes from 6mm to 50mm. This type of coil binding is the most commonly available spiral binding option and is designed for use with the majority of the smaller spiral binding machines on the market. This coil binding is easy to work with binding books up to 1 inch thick, however, inserting 4:1 pitch coils on books greater than one inch can be difficult and time consuming.
5:1 pitch coil is the second most commonly used pattern for document and presentation binding. This uses a hole...
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