... used for bindingnotebooks,workbooks,calendars,etc. SW-520 Double wire binding machine Feature:Double wire binding machine is widely used for bindingnotebooks,workbooks,calendars,etc. ... the intuitive touch screenUp to five step skip bindingCan bind double wire of diameter 1/4 "up to 3/4"Electrical ... /50HZAir Compressor1.5KWMachine Dimension1030*770*1200 mmWeight220KG SW-520 Double wire binding machine