... grommet puncher, as we call it Automatic grommet press machine, Auto tach press machine,Automatic Grommet binder, Automatic Grommetor etc.. It ... to work. Automatic mode: Press the "Option" button, set the "Auto" led light up, use buttons below to set punching frequency(range ... 0.5-10 seconds), and press "Punch" to work in auto-punching mode.1) Turn on the power switch, the guiding ...