Knife Sharpener, 3 Stage Knife Sharpening Tool Helps Repair Restore and Polish Blades for Kitchen

3-stage knife sharpener: 1. CERAMIC: The first stage uses hard diamond rods to pre-grind steel blades that have fallen out of shape. Only this grinding stage has the necessary hardness to restore blunt steel knives to the required basic shape before proceeding to the next stage. 2. COARSE: The tungsten steel step is the starting point for grinding normal steel knives, making them sharp again. 3. FINE: The final step of the sharpening process. Honing the knives with a ceramic stone to remove burrs and polish the blade. Operation: 1.Insert the blade into the slot at a 90-degree angle to the sharpener. 2.Place blade in carbide cutting heads. 3.Pull the knife straight back towards you(2-3 times) while applying a light pressure. 4.Place blade in ceramic fine smoothing rods. 5.Pull the knife straight back towards you(5-6 times) while applying heavy pressure. 6.If blade is still dull, repeat these steps until blade is sharp.  Note: 1.Please check the position or angle of the knife into the V-groove and grind the knife again if the knife is not grind sharp enough. 2.If there are gaps on the knife or gills too thick, please fix that first. Please clean the oil on the knife before grinding so as to avoid affecting the sharpener effect. Not suitable for grinding ceramic knives or scissors. 3.Always clear the sharpener after use. Clean with a damp cloth or mild brush, wipe dry. 4.Please put the knife sharpener and knife beyond the reach of children to avoid any accidents. 5.Always rest your sharpener on a sturdy flat surface, never on your leg, and keep fingers behind finger guard or injury could occur. 6.Not suitable for serrated knives and scissors.