Swingline 2-7 Hole Punch, Semi-Adjustable, Heavy Duty Hole Puncher, Easy Touch, 24 Sheet Punch Capacity, Black (74150) DURABLE COMFORT  Durable metal construction ensures that this heavy duty punch provides long-lasting service. Soft-touch, padded handle brings user comfort to challenging, high-volume projects. PATENTED HEADS  Sturdy punch uses a patented, semi-adjustable punch head system. Comes with 3 punch heads, but accepts up to 7. Additional Swingline punch heads (A7074855) are sold separately. 24-SHEET CAPACITY  Sturdy punch pierces up to 24 sheets of paper, creating precise 9/32 holes. LESS MESS  Cleanup of punched holes is simple with a removable base tray. BUILT TO LAST  Swingline stands behind this high-quality manual punch with a limited lifetime warranty.