Key features

• •【Simply & Efficiency】 Electric Coil Inserter, hands free opporation. Create professional-looking bound books at home or in the office quickly and easily. The spiral coil binding machine electronically inserts plastic coils for faster binding, saves time and effort for large workloads
• •【Professional & Customizable Binding】46 Disengaging Pins Die design, fully adjustable disengageable pins let you control where the binding machine punches holes, comes with 100pcs of 5/16'' black PVC comb spines starter kit and coil crimper pliers (Cannot be punched with laminated paper)
• •【Adjustable Margin Design】TIANSE coil binding machine is suitable for Letter Size (42 holes), A4 Size (46 holes), A5 Size (33 holes). With adjustable side and edge guide, this machine also ensures a precise alignment with each document your bind, and you can easily customize the paper margin: 3mm, 5mm, 7mm to create professional-looking works. This binding machine utilizes 4:1 pitch plastic binding coils
• •【Humanized Full Handle】Our sturdy-grip handle allows you to punch holes in your documents either left- or right-handed. Simply apply steady pressure to punch holes in up to 20 sheets of 80g(paper thickness≈20lb) paper at a time. You can insert up to 2" diameter coils by hand or up to ⅞" coils using the electric coil inserter
• •【Correct use】Please press the punching handle all the way to the bottom and DO NOT pause halfway while punching, otherwise the papers will get stuck (To keep the machine sustainable, we apply lubricant to the machine, please use the included oil-absorbing paper to bind it before you start using it)