**Versatile Paper Puncher: Precision, Durability, and Ease of Use** - **Multi-Format Binding Capability**: This paper puncher is perfect for binding A4 (30 holes), B5 (26 holes), and A5 (20 holes) loose-leaf handbooks. Additionally, it supports DIY binding for up to five sheets of 70g paper at a time, making it ideal for various projects and personal customization. - **Durable Sharp Metal Blade**: Equipped with an independently cast metal blade, this puncher delivers a sharp edge for clean and precise cuts. Its durable construction ensures long-lasting performance, making it a reliable tool for frequent use. - **Accurate Positioning with Graduated Ruler**: The integrated ruler features graduation marks to help you accurately position the edge of A4, A5, and B5 paper, ensuring consistent and professional results with every punch. - **Convenient Scrap Box for Clean Workspace**: A scrap box is conveniently attached at the bottom of the puncher, effectively collecting and storing punched scraps to keep your workspace tidy and organized. - **Adjustable Positioning Columns**: The movable positioning columns on both sides of the fuselage assist in setting the future drilling hole distance, providing additional precision and flexibility for your binding tasks. Optimize your document organization and DIY projects with this versatile paper puncher. Its combination of precise binding capabilities, durable design, and user-friendly features make it an indispensable tool for any office or creative workspace.