... Ncstudio card 4.linear round gui rail & ballscrew Multifunction 4 -axis CNC Engraving Machine ZK-6060 ApplicationsWood ,Metal, Stone,acrylic , ... jade, emerald, jewelry engraving, 3D engraving.... Machine specifications X/Y-axis working area 600*600mmMillling cutter 3.175mm,4mm,6mmZ ... ball screw and linear round guide way for X Y Z-axis, stable operation, high precision and low vibration.2. NcStudio ...