SUPU 300 >> Origin: hangzhou China type : financial punching machine Punch : up to 300 sheets each time Punching bit diameter : standard 6mm ( 4mm optional ) Standard bit from parallelism angle: 70mm, 80mm, 108mm *Standard 2 holes punching Allow 3 holes punching with 70mm > for 3 rings filing Allow 4 holes punching with 80mm > for 4 rings filing Dimension : 356 x138 x 495mm Machine weight: 3.5 kgs Base on factory standard