**Precision Paper Puncher: Versatile, Durable, and User-Friendly** - **Multi-Format Binding**: This paper puncher is designed to accommodate A4 (30 holes), B5 (26 holes), and A5 (20 holes) formats, making it ideal for binding loose-leaf handbooks and other projects. It also supports DIY binding for up to five sheets of 70g paper, offering flexibility for various tasks. - **Durable Sharp Metal Blade**: Featuring an independently cast metal blade, this puncher ensures a sharp edge for clean and precise cuts. Its durable construction guarantees long-lasting performance, making it a dependable tool for regular use. - **Precision with Graduated Ruler**: The built-in ruler is equipped with graduation marks to accurately position the edges of A4, A5, and B5 paper. This feature ensures precise and consistent results, enhancing your document presentation. - **Convenient Scrap Box**: A scrap box is integrated at the bottom of the puncher, providing a convenient solution for collecting and storing punched paper scraps, keeping your workspace clean and organized. - **Adjustable Positioning Columns**: The puncher includes movable positioning columns on both sides, assisting in accurately setting the future drilling hole distance. This feature adds precision and customization to your binding projects. Enhance your binding projects with this precision paper puncher. Its versatile binding capabilities, durable design, and thoughtful features make it an essential tool for both professional and personal use, ensuring efficiency and accuracy in every task.