Feature
●Binding Capacity: up to 40 sheets ( 80g 20lb)
●Length: About 11.3” (36 Loops)
●100 per box, Color: Black. This spiral binding coil can not used with 4:1 pitch binding machine
●3:1 Coil binding ring means per inch has 3 holes (This is very important distinguish 3:1 from 4:1 cause the things to be as different. 4:1 means per inch has 4 holes. They are used with different binding machine.)
●3:1 pitch spiral binding coils great for reports and presentations with any 3:1 pitch coil binding machine
Description
3:1 Pitch Spiral Binding Coil
Rayson plastic spiral binding spines consider all the uses, with 100 coils ensures long-term productivity for all of your binding projects.
Coil bindings lie flat for easy reading, with 360 degree rotation capability for added convenience. Spines are designed with a 3:1 pitch, which equates to 3 holes per inch. They are perfect for business proposals, annual reports, company presentations, and any other book binding project.
Size: 5/16"
- Max. Binding: 40 sheets
- Length: 12” (36 Loops).
- Color: White
- 3:1 Pitch
- Pack of 100 per box
- Binding with U.S. letter size paper (8.5 x 11inches)
- Binding with ISO standard A4 size paper (8.3 x 11.7inches)
What is the difference between 3:1 pitch and 4:1 pitch?
- 3:1 Coil binding ring means per inch has 3 holes
- 4:1 Coil binding ring means per inch has 4 holes
- This is very important distinguish 3:1 from 4:1 cause the things to be as different. 4:1 means per inch has 4 holes. They are used with different binding machine. For example the 3:1 pitch spiral binding only can be used with 3:1 pitch binding machine, like the model TD-130, TD-1500B34, TD-1500B34R which are 3:1 pitch machine.
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| Coil Binding Spines | Coil Binding Spines | Coil Binding Spines | Coil Binding Spines | |
| Size | 3/8" (9.5mm) | 7/16" (11.1mm) | 9/16" (14.3mm) | 5/8" (15.9mm) |
| Color | White | White | White | White |
| 3:1 Pitch | ? | ? | ? | ? |
| 36 Loops | ? | ? | ? | ? |
| Binding Size | A4, Letter or others | A4, Letter or others | A4, Letter or others | A4, Letter or others |
| Easy Binding | ? | ? | ? | ? |
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| Coil Binding Spines | Coil Binding Spines | Coil Binding Spines | Coil Binding Spines | Coil Binding Spines | |
| Size | 5/16" (7.9mm) | 3/8" (9.5mm) | 7/16" (11.1mm) | 9/16" (14.3mm) | 5/8" (15.9mm) |
| Color | Black | Black | Black | Black | Black |
| 3:1 Pitch | ? | ? | ? | ? | ? |
| 36 Loops | ? | ? | ? | ? | ? |
| Binding Size | A4, Letter or others | A4, Letter or others | A4, Letter or others | A4, Letter or others | A4, Letter or others |
| Easy Binding | ? | ? | ? | ? | ? |
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| 5/16" Wire Binding Spines | 3/8" Wire Binding Spines | 7/16" Wire Binding Spines | 9/16" Wire Binding Spines | 5/8" Wire Binding Spines | |
| Size | 5/16" (7.9mm) | 3/8" (9.5mm) | 7/16" (11.1mm) | 9/16" (14.3mm) | 5/8" (15.9mm) |
| Color | Black | Black | Black | Black | Black |
| 3:1 Pitch | ? | ? | ? | ? | ? |
| 32-Loops | ? | ? | ? | ? | ? |