PROFESSIONAL AFFORDER - this product contains a powerful motor with strong power and strong load capacity. Divided into two grinding edges, thick and thin, you can quickly repair the cutting edge and shape the cutting edge. This product chef recommends for all kitchen knives, scissors and flat blade screwdrivers suitable for home use.Your best choice.EASY TO USE - The professional kitchen sharpener is easy to use. When using, simply insert the dull knife into the sharpening slot and pull it out 2-3 times. I'm sure it can make the blade sharp enough. Our sharpener contains a powerful motor, we recommend that you do not sharpen each side of the blade more than 4 times, otherwise it will be too thin and fragile.QUIET AND SAFE - Our knife sharpener has a built-in pure copper motor , with strong magnetic induction, high melting point, high power, sharpening the knife more quietly and not disturbing the rest of the family. There is a non-slip rubber base at the bottom of the machine, which can hold the sharpening tool firmly in place during use.NO DAMAGE TO THE KNIFE AND NO JAMGING MACHINE-Our sharpener can reach a speed of 2800 revolutions per minute when working, and the high-speed operation avoids the ultra-fast friction with the knife steel to cause the steel to shrink, so when it achieves the effect of grinding and sharpening accessories, it can ensure tool life and machine protection.ALL COPPER MOTOR - Premium all copper motor provides efficient and consistent power, provides high performance to achieve exceptional sharpness effects. We suggest that each side of the knife edge be sharpened no more than 4 times, otherwise it will be too thin and fragile.