--- product_id: 94566211 title: "3:1 Pitch Plastic Spiral Binding Coils, 7/16\" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5\" x 11\"), Black, Pack of 100" brand: "rayson" price: "177 zł" currency: PLN in_stock: true reviews_count: 13 category: "Rayson" url: https://www.desertcart.pl/products/94566211-3-1-pitch-plastic-spiral-binding-coils-7-16-diameter store_origin: PL region: Poland --- # Binds up to 80 sheets 3:1 pitch precision Durable black plastic 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 **Brand:** rayson **Price:** 177 zł **Availability:** ✅ In Stock ## Summary > 🖤 Bind Boldly, Present Perfectly! ## Quick Answers - **What is this?** 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 by rayson - **How much does it cost?** 177 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/94566211-3-1-pitch-plastic-spiral-binding-coils-7-16-diameter) ## Best For - rayson enthusiasts ## Why This Product - Trusted rayson brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Value Pack of 100:** Ideal for busy professionals and print shops needing consistent, reliable binding supplies at a great price. - • **Robust 80-Sheet Capacity:** Perfectly binds medium-sized reports, presentations, and manuals with ease. - • **Flexible & Resilient Material:** Crafted from high-quality plastic that resists bending and cracking, ensuring long-lasting use. - • **Universal Letter & A4 Size Fit:** Designed to accommodate both US Letter and ISO A4 paper sizes, trimmed easily for smaller formats. - • **Precision 3:1 Pitch Compatibility:** Seamlessly fits binding machines with 3 holes per inch for flawless document assembly. ## Overview Rayson’s 3:1 pitch plastic spiral binding coils offer a professional-grade solution for binding up to 80 sheets of letter or A4 size paper. Made from durable, flexible black plastic, these 7/16" diameter coils ensure uniform, reliable performance with compatible 3:1 pitch binding machines. Supplied in a value pack of 100, they’re perfect for office pros and creatives who demand quality and efficiency in document presentation. ## Description desertcart.com : Rayson 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 : Office Products Review: Uniform quality you can count on - I bought one of the less expensive spiral binding machines a few years ago, and have been surprised at how often I use it. These coils are great for making small booklets. They're durable, easy to use, and dependably uniform. Very high quality. Five stars all the way. Review: Work perfectly for 3:1 pitch binding - Bought these in February this year and have used them for many books/manuals I have printed at home this year. This is the largest size for a 3:1 pitch binding machine I can find on desertcart. Buying direct from stores online is much more expensive. There is a review below that states these are too short for 8”x11” letter sized paper and they will be if you try to use them with a 4:1 or 5:1 pitch binding machine. For a 3:1 pitch these are perfect for A4 sized paper and I cut them for 8”x11” letter sized paper. Sad that the copy center the customer below consulted did not know how to recognize this difference in pitch sizes for binding. Good purchase. ## Features - 【3:1 Pitch Compatibility】Designed for use with binding machines that punch 3 holes per inch. Not compatible with standard 4:1 coil systems. - 【Binds Up to 80 Sheets】Each 7/16" (11.1mm) diameter coil holds approximately 80 sheets of 20 lb paper, ideal for medium-sized documents. - 【Flexible & Durable】Made of high-quality plastic that is lightweight, flexible, and resistant to bending or cracking during everyday use. - 【Versatile Use】Compatible with both U.S. Letter size paper (8.5" x 11") and ISO standard A4 paper (8.3" x 11.7"). Each plastic coil measures approximately 12" in length with 36 loops and can be easily trimmed to fit shorter sizes like B5 or B6 using RAYSON coil crimper pliers. - 【Value Pack of 100】Includes 100 black binding coils, providing excellent value for bulk users, print shops, or regular office use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07L2NZ67Y | | Best Sellers Rank | #47,098 in Office Products ( See Top 100 in Office Products ) #42 in Binder Combs & Spines | | Brand | RAYSON | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (345) | | Date First Available | December 2, 2018 | | Is Discontinued By Manufacturer | No | | Item Weight | 15.8 ounces | | Item model number | 10305515 | | Manufacturer | Rayson Electrical MFG. LTD. | | Manufacturer Part Number | 10305515 | | Material Type | Plastic | | Product Dimensions | 3.31 x 5.04 x 12.05 inches | | Sheet Size | 8.25-x-11.75-inch | | Size | 7/16 inch (80 Sheet Capacity) | ## Images ![3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 - Image 1](https://m.media-amazon.com/images/I/61SvGmKaS2L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Uniform quality you can count on *by K***H on April 25, 2025* I bought one of the less expensive spiral binding machines a few years ago, and have been surprised at how often I use it. These coils are great for making small booklets. They're durable, easy to use, and dependably uniform. Very high quality. Five stars all the way. ### ⭐⭐⭐⭐⭐ Work perfectly for 3:1 pitch binding *by E***L on September 20, 2024* Bought these in February this year and have used them for many books/manuals I have printed at home this year. This is the largest size for a 3:1 pitch binding machine I can find on Amazon. Buying direct from stores online is much more expensive. There is a review below that states these are too short for 8”x11” letter sized paper and they will be if you try to use them with a 4:1 or 5:1 pitch binding machine. For a 3:1 pitch these are perfect for A4 sized paper and I cut them for 8”x11” letter sized paper. Sad that the copy center the customer below consulted did not know how to recognize this difference in pitch sizes for binding. Good purchase. ### ⭐⭐⭐⭐⭐ great value *by D***E on January 21, 2026* As described. good quality for the price. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/94566211-3-1-pitch-plastic-spiral-binding-coils-7-16-diameter](https://www.desertcart.pl/products/94566211-3-1-pitch-plastic-spiral-binding-coils-7-16-diameter) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-25*