... 4.linear round gui rail & ballscrew Multifunction 4 -axis CNC Engraving Machine ZK-6060 ApplicationsWood ,Metal, Stone,acrylic ,organic glass ... jade, emerald, jewelry engraving, 3D engraving.... Machine specifications X/Y-axis working area 600*600mmMillling cutter 3.175mm,4mm ... powerful.5. Power off and break point, continuing processing.6. Good software compatibility: Type3, Artcam, Ucancam, All kinds ...