The Deli E3872 Comb Binding Machine is the ultimate solution for offices, schools, and small businesses seeking heavy-duty manual document binding. With its robust steel frame and user-friendly adjustable features, this A4-sized binder allows: Punching Capacity: Up to 15 sheets per stroke (70–80 gsm) with 21-hole format Binding Capacity: Securely binds up to 425 pages with a standard plastic comb Margin Depth Control: Adjustable between 2.5–6.5 mm for perfect edge alignment Durable Build: All-metal body, manual lever operation, built-in waste tray, and tested for 10,000+ punches Compact & Portable: Dimensions approx. 385×270×325 mm; weight around 4.5–4.9 kg