Specification: Grit: 80 Material: Green Silicon Carbide Length: 150mm Width: 12mm Height: 6mm Description: It can be used for rough grinding, medium grinding, fine grinding, polishing, etc. Note: The green silicon carbide sharpening stone is slightly soft in texture. Grinding Method: Immerse the oil stone in water for about 15 minutes Polish evenly in one direction with an angle of 10%~20%. Do not remove the powder when polishing the tool, which helps to sharpen the tool Clean the surface of the oil stone with a soft brush and put it in a ventilated room to dry Notes: This stone can be sharpened with water or sharpening oil. Take care to protect the oil stone during use and avoid falling from high places.