1、[Versatile Puncher] This 6 hole paper punch is suitable for A4 (30 holes), B5 (26 holes), and A5 (20 holes) paper sizes, offering versatility in hole punching options. 2、[Hole Punch Specification] 5.5mm hole diameter, 7mm paper feed depth, 9.5mm hole spacing. Our hole puncher can punch up to 5 sheets of paper at once (maximum 80gsm). 3、[Easy Positioning] Equipped with positioning pillar rulers on both sides, this puncher allows for easy and accurate placement, ensuring accurate hole punching each time. 4、[Sharply Metal Blade] Featuring sharply metal blade, this hole puncher creates clean and accurate holes, facilitating neat and organized paper organization. 5、[Customizable Punching] Once you have mastered the operation, you can easily customize the number of holes punched to suit your specific needs for notebooks, scrapbooks, and more. Item Type: 6 Hole Punch Material: Alloy Steel, ABS Hole Diameter: Approx. 5.5mm / 0.22in Paper Feed Depth: Approx. 7mm / 0.28in Hole Spacing: Approx. 9.5mm / 0.37in Application: Suitable for punching A4 (30 holes), B5 (26 holes), A5 (20 holes) loose leaf book inner pages. Pair with porous clamping strips can DIY bind and create exclusive notebooks, reports, files, and documents. 1 x 6 Hole Punch 2 x Positioning Ruler