... card 4.linear round gui rail & ballscrew Multifunction 4 -axis CNC Engraving Machine ZK-6060 ApplicationsWood ,Metal, Stone,acrylic ,organic glass ... software.7. Good at small work piece precision processing, mainly used for metal, such as aluminium, copper, stainless steel, steel, alloy ... 9.Also can for wood, MDF, acrylic, organic glass, PVC, double color board, stone, jade processing. Sample pictures