Binding Wire 3:1 1/4" Black
- Capacity: 6.9mm (1/4")
- Material: Metal
- Pitch: 3:1
- Paper size: A4
- Qty: 100 pcs
3:1 pitch means 3 punched holes per inch (34 Holes to A4)
2:1 pitch means 2 punched holes per inch. (23 Holes to A4)
3:1 pitch wire is used for smaller documents no larger than 120 pages (70gsm)
2:1 pitch wire is generally used for larger documents of up to 325 pages (70gsm).
Approximate pages to wire guide (80gsm):
| 1/4″ | 6.9mm | 30 pages |
| 5/16″ | 8mm | 45 pages |
| 3/8″ | 9.5mm | 60 pages |
| 7/16″ | 11mm | 75 pages |
| 1/2″ | 12.7mm | 90 pages |
| 9/16″ | 14.3mm | 115 pages |
| 5/8″ | 16mm | 120 pages |