Description
3/8" spiral for specific binding steps
Metal spiral roll 3/8" (9.52 mm), black, 3:1(code CABU03570) is a black roll spiral. Diameter value 3/8" / 9.52 mm combined with 3:1 perforation; the supplier indicates the capacity group "61–75 sheets," and the drum contains 46,000 loops.
Roll for non-standard product widths
CABU03570 spiral is not pre-cut into A4 segments. From the black roll, the exact 3/8" length of the element is cut for a specific calendar, notebook, or brochure, so the yield depends on the number of loops used in one product.
What to check before pinching
When choosing a black 3/8" coil, the perforation step is first aligned, then the entire bundle with the covers is measured. The capacity indicated for the code CABU03570 is indicative: the selected element must allow the sheets to turn freely and not press on the binding edge.
Technical specifications
- Diameter – 3/8" / 9.52 mm
- Color – black
- Step – 3:1
- Capacity group – 61–75 sheets
- Number of loops in the drum – 46,000
- Material – nylon-coated metal wire
- Feed form – roll

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