This knife sharpener is suitable for people in the kitchen who do not possess extremely high-quality knives, no idea of the knife grinding have yet ever want to use sharp knives, because with this sharpener can be "normal" knife easily and regrinding and pull very quickly without to damage the blades. However, on first use of the grinder is quite dull blades (eg knives, which were too long withdrawn only with a steel but really would have to be long reground) grinding not quickly possible with this grinder, but you have to in this case, the knife 30 to 40 times pass through the sharpener before the knife is sharp. But you should not attempt to accelerate with too much pressure when pulling the blade through the sharpener the process, because then you can also damage with this grinder its diameter. After this resharpening of relatively blunt knives enough a 3 to 4 times by dragging the knife through the sharpener to get back to get a sharp blade. I use the sharpener for several months now and would not want to miss him.
