1 Each. Optima Low Force Punch drills through up to 20 sheets of 20 lb. paper with 70 percent less effort than standard desktop punches for more efficient punching. Innovative spill-resistant chip cartridge tray is designed to keep chips contained until you empty them into the wastebasket. Chip cartridge is translucent to clearly indicate when to empty the cartridge. Use lockdown handle for safe and secure storage.