... double drivers to drive y axis 3.Long lifetime Marble/Bluestone CNC Engraving Router JCUT-1212C Jade CNC ... mainly used for light weight of the tile, bluestone,marble, granite, white marble, sandstone,such as a stone sculpture processing, category ... used for lighter weight of the tile,bluestone ,marble,granite,white marble,sandstone,such as a stone sculpture proccessing,category carved ...