coil binding machine S20EBinding Material: Plastic Coil/metal coilBinding Thickness: ArbitraryPunch Capacity:20 sheets(80g)Binding Width: Less Than 300mmHole Distance:6.35mm(4:1) 46 holesDepth Margin: 2.5∼6.5mmHole Spec: ? 4.0mmQuantity of Movable Cutter: All piecesPunching Form: Electric (220V/50HZ/110V/60HZ)Product Size: 445*290*210mmWeights: 16kgs