The OIC Heavy Duty Three-Hole Punch OIC90089 is designed for high-capacity punching, capable of creating three 9/32" holes in up to 40 sheets of 20 lb. paper. It features a padded handle for comfortable operation and a lock-down handle for easy storage. The chip tray is easy to empty, and the punch includes an adjustable paper guide, sturdy metal construction, and a jam-free mechanism for reliable performance.