The “New Heavy Duty Spiral Coil Manual Punch, Electric Inserter, Binding Machine Combo 4:1 Pitch” (FPD-18-360) is a manual punch and electric spiral coil inserting combo system. The Coil Spiral binding machine is easy to use, and powerful enough to meet all your needs for spiral coil binding. This coil spiral binding machine comes with removable punching dies. With disengagement pins for clean punch. Electric Insert, Manual Punch Combo Coil Spiral Binding Machine Key Features. Coil spiral binding machine: metal based heavy duty for commercial and professional uses. Manual punching, Electric insertion. Sheets (20lbs paper) Binding upto. 500 sheets Binding material: 4:1 pitch, plastic coil Removable disengagement pins: 53 pcs for clean punch Paper size: Letter size, upto 12 width. Hole size:diameter 4 mm, hole distance 6 mm. High capacity waste tray with easy front access. Standard plug for US and Canada, 110V. 14″x18.5″x18.5. Package weight: 37 lbs. Brand new in box. We appreciate your business and your feedback is very important to us. We will do our best to resolve your concern. Thank you for your business!