... , milestone, Terrazzo, Limestone, Sandstone, Travertine, Quartzite, Slate, grindstone ,Jade, crystal, plexiglass, aluminum composite panel, aluminum block, copper and so ... source AC220V/50Hz Blade diameter 3.175mm,4mm,6mm,12.7mm Motor Stepper motor Compatible software TYPE3 software, ... air-cooled spindleQuality assurance1. The machine is guaranteed for 12 months.2. Technical support by phone, e-mail or ...