WIDELY USED: 10-hole loose leaf puncher is suitable for binding A4, B5, A5, A7, B4 paper with 20, 26, 30, or more holes for loose leaf, ledger, and similar documents. 10 SHEETS CAPACITY: The paper binding machine can punch up to 10 sheets (70g) of paper with a hole diameter of 5mm and hole spacing of 9.5mm. CUSTOM PUNCHING: The scale line on the ruler board allows accurate positioning for the edges of A4, A5, and B5 paper. Supports 30 holes for A4, 20 holes for A5, and 26 holes for B5. Once the method is mastered, users can customize hole numbers for DIY punching. ACCURATE HOLE PUNCHING: Both sides of the punch feature positioning posts and rulers to ensure precise hole alignment. DURABLE AND NON-SLIP: The binding machine has an all-metal lacquered body for long-lasting durability. The plastic chip tray collects paper scraps, provides non-slip stability, and helps protect tabletop surfaces. Package Includes: 1 x Main Unit 2 x Accessories Item Type: Paper Binding Machine Color: Light Blue Hole Distance: Approx. 9.5mm / 0.37in Hole Diameter: Approx. 5.5mm / 0.22in Feeding Depth: Approx. 7mm / 0.28in Application: A4, B5, A5, A7, A6, etc. (paper thickness not exceeding 10 sheets of 70g paper)