MyBinding Coil Binding Supplies

Choose coil diameter by the thickness of the punched document, including covers and any tabs. The live MyBinding coil range includes sizes from small diameters up to large coils, with stated document capacity from about 5 to 440 sheets of 20 lb paper across the full range. A coil that is too small makes the document hard to turn and can strain the punched holes. A coil that is too large looks loose and may feel awkward. For thick manuals, build one sample stack with the actual paper, covers, and dividers, then measure the bound edge thickness. Broader spiral coil binding supplies can help compare size and color options.

Choose coil length by the binding edge and trimming workflow. The live MyBinding coil options include 12" and 36" lengths. A 12" coil is commonly used when binding standard letter-size documents along the 11" edge, leaving enough extra length for insertion and crimping. A 36" coil is useful when binding longer documents, oversize sheets, calendars, or custom work where the coil must be cut down after insertion. Do not buy 36" coils just because they seem more flexible if your team only binds standard letter documents; they add cutting steps. Match length to the document format and the production method your team uses most often.

Hand insertion can work for short runs, small documents, or occasional binding. A coil inserter becomes useful when you bind many documents, use larger coils, or want faster, more consistent production. Coil binding requires the coil to spin through the punched holes, then both ends must be cut and crimped so the coil does not unwind. Larger or thicker books take more effort by hand. If your team binds often, pairing MyBinding coils with coil inserters can save time and reduce frustration. For low-volume work, hand insertion may be enough, but keep proper crimping tools available for a secure finish.

Coil crimpers finish the bind by cutting and bending the coil ends inward. Without a proper crimp, the coil can twist back out of the punched holes during handling. That is especially important for manuals, reports, planners, and reference documents that need to lay flat or fold back during use. The live coil supply range includes many colors and sizes, but the finished document quality still depends on correct crimping. Scissors may cut the coil, but they do not create the same secure bent end. If your team binds documents regularly, keep coil crimpers near the inserter and train users to crimp both ends cleanly.