※Requirements for the machine tool: (1) Motor power above 2000 watts; (2) Rotational speed around 20000-24000 rpm; (3) Sufficient circulating water at the contact part between the tool tip and the stone; (4) Try to choose a stone engraving machine or a machine table with relatively good rigidity; ※Precautions for tool use: Ensure flexible feeding during each tool lowering when programming; ※Requirements for the operator: (1) The tool tip should contact the object when rotating; (2) Pay attention to handling with care; (3) The service life of the tool is closely related to the feeding speed; the harder the stone, the slower the feeding speed required. -(To be continued on the engraving effect drawing)