Kitchen Knife Sharpener for Straight and Serrated Knives, 2-Stage Diamond Coated Wheel System, Easy Manual Sharpening for Dull Steel, Paring, Chefs and Pocket Knives, Sharpens Scissors

Materail:ABS+stainless steel 3 stage materail:diamond Tungsten carbide ceramics how to use the 3 stage knife sharpener to sharpen the kitchen knife? --1st Step: " How to use tCERAMIC" stage (preparation): For repairing damaged blades and straightening blades before sharpening. --2nd Step: "COARSE" stage (sharpen): Sharpens the blade and restores the cutting edge to a "V" shape. --3rd Step: "FINE" stage (fine tune): Polishes the blade and equalizes any surface irregularities that may have been caused. Caution: 1.The sharpener is not able to work with serrated, ceramic blades and scissors. 2.Do not push and pull the knife back and forth, use one direction only. 3.Do not put too much downward pressure.