Product Description: Max idle running 25m/min Max engraving speed 6m/min process precision 01.mm/300mm Main shaft speed 6000-24000rpm Main shaft power 3.0KW Diameter of cutting tool dia 12.7 dia 8 dia 6 dia 4 Applicable to all kinds of marble, granite, artificial rocks, tombstones, milestones, tiles, glass and other materials and line three-dimensional relief carving, cutting, down side, drill two ...