Heavy-Duty 144-Sheet High-Capacity Adjustable Paper Punch, Replacement Punch Sets? Punches 9/32 holes and includes three punch headsPunches two or three holes. Letter size. Adjustable paper guide, chip tray. Gray handle. Replacement Punch Sets (SWI74857, SWI74860) sold separately. Sheet capacity is based on 20-lb. bond. (As more heads are added to a punch, the sheet punching capacity decreases.) Manufacturers limited 180-day warranty.Replacement Punch SetThree 9/32 diameter punch heads and six punch disks. For Heavy-Duty High-Capacity Adjustable Punch (SWI74650), sold separately.