stone engraving machine working area1300x2500mm CE 3kw constant power spindle all square guide rail,stepper motor DSP stone engraving machineApplicable ... for cutting and engraving of the tile, bluestone, marble, granite, white marble, sandstone, glass type, copper, iron, plastic, stone ... 0.005mmRepositioning accuracy 0.025mmComputer interface USB 2.0Collet 3.175mm, 4mm, 6mmSoftware Artengraver2009/ ...