**Versatile Paper Puncher: Precision and Durability for Your Binding Needs** - **Multi-Format Compatibility**: This paper puncher is ideal for binding A4 (30 holes), B5 (26 holes), and A5 (20 holes) loose-leaf handbooks, making it perfect for a variety of formats. It also supports DIY binding for up to 5 sheets of 70g paper at a time, catering to both professional and personal projects. - **Durable Sharp Blade**: Equipped with an independently cast metal blade, this puncher ensures sharp and precise edges with every use. Its robust construction guarantees long-lasting durability, providing reliable performance for frequent binding tasks. - **Accurate Ruler Guide**: The included ruler features graduation marks that allow you to accurately position the edge of A4, A5, and B5 paper. This ensures precise alignment and neat, professional-looking results every time. - **Convenient Scrap Box**: A scrap box is conveniently attached at the bottom of the puncher to collect punched scraps, keeping your workspace tidy and free from clutter. This feature simplifies cleanup and enhances the overall user experience. - **Movable Positioning Columns**: The puncher includes movable positioning columns on both sides, assisting in accurately determining the future drilling hole distance. This ensures consistent results and greater control over your binding projects. Optimize your document binding process with this versatile and durable paper puncher. Its precision features and user-friendly design make it an essential tool for anyone looking to achieve professional-quality results in both office and personal settings.