Streamline your document organization with this manual coil spiral binding machine. Designed for offices, schools, and small businesses, it features a robust ABS construction in a classic white and black finish. The unit efficiently punches up to 12 sheets of paper across 34 holes in a single pass and binds documents up to 120 sheets thick using adjustable coil spines ranging from 3/16" to 9/16". Compatible with standard Letter, A4, and A5 paper sizes, this binder ensures professional-looking reports, presentations, and manuals. Please note: This machine is specifically engineered for Double Loop Wire with a 3:1 pitch; using other wire types may impact performance.