Set of three replacement punch heads and five discs, Adjusts easily for three standard two- and three-hole punch positions, Punches up to 10 sheets of 20-lb, paper, Protective base prevents scuffs, Easy chip disposal, Makes it easier to adjust for two-hole punching, Durable and long lasting, Accessory Type: Replacement Punch Head Set; Hole Diameter: 9/32 in; Number of Holes Punched: N/A; For Use With: Swingline® High-Capacity Adjustable Punch or Mega Duty Punch, SKU: AZSWI74857