Bind like a pro with manual punching and binding operation, featuring 34 round holes ( Diameter: 4.5mm) for precise alignment. Maximize productivity with a punching capacity of 12 sheets (80gsm/20lb) and binding capacity of up to 120 sheets (80gsm/20lb). Customize your margins with adjustable settings of 3, 5, or 7mm, and accommodate A4, letter-sized sheets (8.5x11.0"). Durable construction: The machine is built with high-quality materials that ensure its longevity and reliability. This makes it a great investment for businesses and individuals who want a machine that will last for many years. Cost-Effective: The TD-1200R is equipped with 3:1 pitch binding spines, including 3:1 pitch coil binding spines, 3:1 pitch click binding spines, and 3:1 pitch wire-o binding rings, making it ideal for various applications. The TD-1200R binding machine is made of durable metal construction, which is a traditional and perfect machine for punching or binding. It works with any 3:1 pitch accessories, such as 3:1 coil binding spines, 3:1 click binding spines or 3:1 wire binding ring, great for multi-scenarios.