Question:

I noticed that you offer coil binding machines in 4:1 pitch and 5:1 pitch. What does this mean? What’s the difference between the two sizes?

Answer:

Pitch refers to the number of holes the binding machine punches per inch. For example: a 4:1 coil binding machine punches four holes per inch, or 4:1. A 5:1 model punches five holes per inch. Why is there a difference? It’s basically a matter of preference. Some people like the look of the tighter spiral coil with 5:1.

A 4:1 pitch machine can bind more sheets than 5:1. You can bind up to 230 papers with 4:1, compared to 152 with a 5:1 pitch machine. The punched holes in the 4:1 paper are spaced farther apart, thus making it easier to turn the pages of a larger document.

Related posts:

  1. What is a Coil Binding Machine?
  2. Why Don’t You Carry 3:1 Pitch Wire In Larger Sizes?
  3. What Is The Best Spiral Coil Binding Machine?
  4. Spiral-O vs. 2:1 Pitch Wire Binding
  5. Binding Your Own Books Doesn’t Have To Be Complicated
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