Professionalize your document management with this heavy-duty Comb Binding Machine. Designed for high-frequency use in offices, schools, and print shops, this metal-bodied binder offers a seamless way to organize reports, manuals, and presentations. Its robust construction and user-friendly manual lever make it an essential tool for creating durable, professional-looking bound documents in minutes. Features • Durable Metal Construction: Built with a solid metal frame to provide maximum stability and long-term durability, even during high-volume punching tasks. • High Binding Capacity: Capable of binding documents up to 450 sheets thick, making it ideal for everything from slim presentations to thick instructional manuals. • Adjustable Margin Settings: Features an adjustable side distance guide (3mm, 4mm, and 5mm) to ensure perfect hole alignment for different document thicknesses. • Precision 21-Hole Punch: Equipped with a standard 21-hole square punch (3mm x 8mm) specifically designed for A4 size comb binding rings. • Efficient Manual Operation: The ergonomic handle design allows you to punch up to 12 sheets of standard paper at once with minimal physical effort. Specifications • Material: Premium Reinforced Metal • Hole Configuration: 21 Square Holes (3mm x 8mm) • Punching Capacity: Max 12 Sheets (80g paper) • Binding Capacity: Up to 450 Sheets (80g paper) • Adjustable Side Margin: 3mm / 4mm / 5mm • Product Dimensions: 41cm x 18cm x 28cm Package Included • 1 x Comb Binding Machine