Adjustable margins for precise binding Punch holes at 3 mm, 5 mm, or 7 mm binding positions with a builtin drawer to collect paper scraps, helping prevent damage to the machine. Efficient performance Dualpurpose apron clamping strip allows punching up to 12 sheets and binding up to 400 sheets at once, reducing misaligned holes and burrs for smooth operation. Durable steel blades 21 steel blades can be separated for different document sizes, and the unit works with plastic rolls or binding clips to produce secure, symmetrical holes. Easy to use Timesaving and straightforward to operate, enabling the creation of professionallooking bound books at home or in the office for reports, manuals, and presentations. Use scenarios Office reports: bind monthly or quarterly reports for clear, professional distribution in meetings. Training materials: assemble manuals and handbooks for onboarding or staff training. Client proposals: prepare polished, bound presentation booklets for client meetings or pitches.