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Twin Loop Wire Binding
2:1 Pitch Double-O Wire spines lets pages lie flat with 360° rotation for convenient note taking and photocopying, and it permanently binds documents. That way you get the peace of mind in knowing your presentations always look great and stay secure. 2:1 pitch means the binding machine punches 2 square or round holes per inch, for a total of 21 holes on an 11 inch binding spine. 2:1 pitch generally binds from 140-250 sheets of 20lb. paper. 2:1 pitch binding wire requires a 2:1 pitch binding machine that punches square or round holes and closes the wire through crimping.
3 :1 Pitch Double-O Wire spines lets pages lie flat with 360° rotation for convenient note taking and photocopying, and it permanently binds documents. That way you get the peace of mind in knowing your presentations always look great and stay secure. 3:1 pitch means the binding machine punches 3 square or round holes per inch, for a total of 32 holes on an 11 inch binding spine. 3:1 pitch generally binds from 45-125 sheets of 20lb. paper. 3:1 pitch binding wire requires a 3:1 pitch binding machine that punches square or round holes and closes the wire through crimping.
2:1 Pitch Double-O Wire Punch Pattern
21 square/round holes to an 11" spine
2:1 Pitch Double-O Wire Size Guide
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Wire Diameter
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Approx. Sheet Capacity (20lb. bond)
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5/8"
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140
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3/4"
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156
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7/8"
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187
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1"
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218
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1 1/8"
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232
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1 1/4"
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250
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3 :1 Pitch Double-O Wire spines lets pages lie flat with 360° rotation for convenient note taking and photocopying, and it permanently binds documents. That way you get the peace of mind in knowing your presentations always look great and stay secure. 3:1 pitch means the binding machine punches 3 square or round holes per inch, for a total of 32 holes on an 11 inch binding spine. 3:1 pitch generally binds from 45-125 sheets of 20lb. paper. 3:1 pitch binding wire requires a 3:1 pitch binding machine that punches square or round holes and closes the wire through crimping.
3:1 Pitch Double-O Wire Punch Pattern
32 square/round holes to an 11" spine
3:1 Pitch Double-O Wire Size Guide
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Wire Diameter
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Approx. Sheet Capacity (20lb. bond)
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1/4"
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46
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5/16"
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62
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3/8"
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78
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7/16"
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93
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1/2"
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109
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9/16"
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125
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