Coil and Spiral Binding Hole Patterns Explained (4:1 and 5:1 Pitch)

Spiral and Coil Binding MachinesSpiral binding machines, also known as coil binding machines, are one of the most widely used binding machines used today. Spiral binding has many benefits. The coils look great, they hold up well and pages can turn a full 360 degrees. The binding coils themselves are very affordable and are available in a wide variety of colors. So why are there two different pitches (hole patterns) available?

Spiral binding machines can be found in two different hole patterns. These are 4:1 pitch and 5:1 pitch. What it all boils down to is 4:1 pitch uses a hole pattern of four punched holes per inch of paper and a 5:1 pitch uses a hole pattern of five holes punched per inch of paper. While very similar, these two different hole patterns do visually look a little different when compared side-by-side.

4:1 Pitch Hole PatternA 4:1 pitch hole pattern is the most widely used and most popular spiral binding hole pattern used. The 4:1 hole pattern is able to bind more sheets of paper, at about 230 total pages. This is because the holes are spaced farther apart. Many people feel the pages turn more easily as well. You will find our 4:1 pitch spirals here.

The 5:1 pitch hole pattern has what many people call a “tighter” look. This is because the holds are closer together. The 5:1 pitch pattern is able to bind up to about 150 sheets of paper. Some people feel the tighter look is better for thinner books and for presentations. You will find our 5:1 pitch spirals here.

The pitch you use ultimately depends on your preferred look. Although 4:1 pitch is more popular, you may prefer the look of 5:1 more. You will find our entire selection of spiral binding machines here.

Keith Barlow

Keith is a third generation office equipment expert. ABC Office was started by his grandfather back in 1980 and he is proud to be caring on the values that made ABC Office what it is today… unsurpassed selection, detailed information, low prices, and courteous support.

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