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 reliabilty. Side margin guide evenly centers the document. Inserting table channel aids with the inserting of plastic coil for a faster and more efficient binding job. ISO 9002 Quality