With this Bostitch three-hole punch PaperPro technology easily three-hole punch up to 20 sheets jam-free. Designed with sleek comfortable curves and a durable all-metal design for long-lasting performance. To ensure consistent hole placement the punch has an integrated paper guide and ruler. For maintaining a clean work environment the base holds the chip waste and can be emptied through the flip-open door. Ideal for the home office or school this hole puncher is the perfect tool for any setting.