1-1/4" 2:1 Twin Loop (Wire-O) Binding Wire Spool (2,600 Loops/Spool) Fastback Machines Radii Chart:

Radii Chart:

Now you can create professionally-made booklet publications in the comfort of your own shop/office

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Our 20 mil Leather Polycovers will stand up to even the most heavy-duty applications

AutoGrip shafts make adding and removing standard film a breeze

1-1/4" 2:1 Twin Loop (Wire-O) Binding Wire Spool (2,600 Loops/Spool) Fastback Machines Radii Chart:Wire O binding wire, also called "duo wire" or "twin loop binding wire", is a versatile binding spine that offers security and durability, but with style and affordability. 2: 1 pitch wire o binding wires are designed to fit the signature hole pattern of a 2: 1 pitch wire binding machine (two holes per inch = 21 holes per letter sized sheet). Wire O binding wires from Lamination Depot are fully compatible with all standard wire binding machines,