The small Offiwire wire binding machine from Akiles is easy to use. Will bind sheets up to 9/16 thick. Uses the standard 3:1 pitch wire binding supplies. Product Summary Effective: Punches up to 10 sheets of 20lbs. bond paper. Harden Steel Dies: For a clean and precise punch every time, even when perforating delicate or hard to punch materials, such as PVC, PP, Polyester, etc. "U" Shape Handle: Maximizes punching-strength, for an effortless perforation. Strong: Metal chassis and high quality components guarantee durability and reliability. Bilateral Closer: Systematically and independently adjusts at either end, providing a precise and even wire closure. Side Margin Guide: To evenly center the document. Wire Selector: Precisely determines the appropriate wire diameter to use. ISO 9002 Quality