Upgrade your document finishing with the Deli E3873 Comb Binding Machine – the perfect solution for schools, offices, and businesses needing a professional, high-capacity binding tool. This heavy-duty manual binding machine can punch up to 18 sheets at once and bind up to 450 sheets with a 21-hole comb binding system. Its adjustable margin settings allow for precise alignment, while the durable steel construction ensures long-lasting performance.