Black 1/2" 2:1 Pitch Twin Loop Wire - 100pk

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Item# W120BK21
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These high quality Black 1/2" 2:1 Pitch Twin Loop Wires are some of the best wire binding spines on the market today. Also called Wire-O, WireBind, and Double Loop Wire, these black 1/2" 2:1 pitch elements let pages lie flat with 360 Degrees rotation for convenient note-taking and photocopying as well as provide a permanent bind to your documents--meaning your pages stay secure and protected. Not only that, but these black 1/2" 2:1 pitch wire spines look a tad more refined than a plastic comb or spiral coil. Measuring 1/2" in diameter, these black twin loop wires can hold approximately 80-100 sheets. These black 1/2" 2:1 pitch twin loop wires come open in a "C" shape, allowing you to insert the spines into your punched pages and then simply use your wire binding machine or wire closer to finish your books. Product number W120BK21.

Product Details

  • Color: Black
  • Pitch: 2:1 (21 loops)
  • Size: 1/2"
  • Capacity: Approx. 80-100 sheets (20lb bond)
  • Quantity: 100 Per Box
  • Part Number: W120BK21

Demonstration Video

Everything There Is To Know About Twin Loop Wire Video

Transcript: Welcome to MyBinding video. This is everything you need to know about Twin Loop Wire. First there are sizes ranging from 3/16 of an inch to 1 1/2". There are many sizes of wire, which can hold up to 300 pages. And a great benefit to twin loop wire is that pages lay flat. Better yet, it folds nicely back to back. There are 2 standard pitch sizes: 2:1 and 2:1. 2:1 is better for larger size books while 2:1 is better for smaller ones and there are custom pitches for when you find yourself with a different punch. The standard length of wire is 11 inches and again there are custom lengths for when y ...

Sizing Guide

Size Pitch Approximate Capacity (20# Paper)
3/16" 3:1 Pitch (32 Loops) 5-20 Sheets
1/4" 3:1 Pitch (32 Loops) 20-30 Sheets
5/16" 3:1 Pitch (32 Loops) 30-50 Sheets
3/8" 3:1 Pitch (32 Loops) 50-60 Sheets
7/16" 3:1 Pitch (32 Loops) 60-80 Sheets
1/2" 3:1 Pitch (32 Loops) 80-100 Sheets
9/16" 3:1 Pitch (32 Loops) 100-120 Sheets