Stone CNC Routers are versatile tools used for 3D relief carving, kitchen countertop fabrication (sink hole cutting), tombstone engraving, and architectural decoration. Advanced models may include an automatic tool changer (ATC) for complex designs requiring multiple bits, or a rotary axis for cylindrical stone pillars. For B2B buyers, selecting a machine with breakpoint memory is crucial, as it allows the machine to continue work after a power failure or tool breakage, preventing the waste of expensive stone materials.