Plastic Coil Binding Supplies Introduction:
1. The plastic coils are made of the imported food-grade PVC plastic colloidal particle, firm and bright, durable, high-quality.
2. The hole distances are precise; The standard hole distance is 6mm or 8mm, or made into other distances following the clients instructions.
3. Completed specifications alternatives can be chosen from 1/4 --- 2 inch; Various colors alternatives, which can be appointed based on the International PANTONE Standard Card.

Specification and Binding:
Diameter Pitch Recommended Max Binding Thickness
Inch mm mm mm (Sheet/Max) (80g)
1/4 6.4 6 or 8 or other 3.4 45
5/16 7.9 4.9 60
3/8 9.5 6.5 75
7/16 11.0 8.1 85
1/2 12.7 9.7 100
9/16 14.3 11.3 120
5/8 16 12.9 135
3/4 19 15.1 165
7/8 22.2 18.2 180
1 25.4 20.4 200
1-1/4 31.8 25.8 225
1-3/8 34.9 27.2 250
1-1/2 38 29.6 275
1-3/4 44.5 36 300
2 50.8 42 330