Process up to 40 sheets of paper at once. Adjustable guide ensures paper is placed correctly before punching. Lock-down handle design makes storing simple. Built-in chip tray contains messes and makes cleanup quick and easy. Padded handle for added comfort. Constructed from sturdy metal for long-lasting use. Sheet Capacity: 40; Operating Method: Manual; Number of Holes: 3; Hole Diameter: 9/32".