... .2kw water cooled spindle 3.Ncstudio card 4.linear round gui rail & ballscrew Multifunction 4 -axis CNC Engraving Machine ZK-6060 ApplicationsWood ,Metal, Stone ... , copper, stainless steel, steel, alloy, etc.9.Also can for wood, MDF, acrylic, organic glass, PVC, double color board, stone, jade ...