1 1/8" Binding Combs

Assemble the document exactly as it will be bound, including both covers, every divider, inserts, and any folded or coated material. Place the stack on a flat surface and let it rest naturally without pressing it tightly. Measure the thickness at the binding edge because that is where the comb must provide room. The stack should be slightly thinner than the usable space inside the spine, allowing sheets to rotate around the fingers. If the document contains uneven elements such as pockets or folded inserts, measure the thickest area. Sheet count can support the decision, but thickness is more dependable when mixed materials are involved. A test with a spare comb can reveal whether the contents turn freely and whether the spine sits neatly when the document is closed.

Often they do. Two durable covers can add noticeable bulk, especially when combined with dividers or coated inserts. Thick clear binding covers should be included when measuring because their rigidity can also affect how the document opens. Place every item in the final sequence and measure the full stack at the binding edge. The comb should not press tightly against the contents when closed. Open the sample document and confirm that the front cover, dividers, and final sheets turn without catching. If movement feels restricted, the next diameter may produce a cleaner and more durable result. Choosing from the completed stack also prevents an unnecessarily large spine from making the document feel loose.

Yes. A plastic comb can be opened again, making it suitable for manuals, policies, directories, and other documents that may change. Use the comb opener on the binding machine instead of pulling the fingers apart by hand. Open the spine only enough to release or add the required sheets, keeping the punched holes aligned during the update. Close it slowly and confirm that every finger returns through the matching slot. Repeated rough handling can bend the fingers or reduce their grip, so replace the comb if it no longer closes evenly. After adding material, reassess the total thickness. A document that originally fit a 1 1/8 inch spine may need a larger diameter once new sections, replacement covers, or extra dividers are included.

Measure the complete stack and test sheet movement rather than choosing from the estimated capacity alone. If a 1 1/8 inch comb closes but the sheets drag against the spine, the fit is too tight even when the document technically remains within the suggested sheet count. Moving to 1 1/4 inch binding combs provides additional turning room for heavy covers, dividers, coated paper, or future additions. If the 1 1/8 inch comb leaves excessive empty space and the contents shift, move down a size. The best fit should keep the stack controlled while allowing the front, middle, and final sheets to turn smoothly. Testing one assembled document can prevent ordering a large quantity of an unsuitable diameter.