DK-4 4 hole paper puching machine Drill Head Qty: 4 Feeding Width: 460 mm Drill Thickness: less than 50 mm Hole Diameter: 3 - 8 mm Hole Distance: 45-92 mm Margin Adjustment: 6 - 35 mm Work Plate Size: 520 x 280 mm Drilling Mode: Automatic Display: 4.3’’ touch screen Machine size: 55 x 61 x 103 cm Voltage & Power: AC 220/110V, 50/60HZ, 1000W Weight: 180 kg for more details, please visit http://www.autobindingmachine.com