Fast grinding is an indispnsable utensil
in the household kitchen.It doesn't requires any grinding skill.You must put the blade of your knife downwards in the V-shaped slot,press down lightly several times with your wrist,and then you will get a sharp bladc.This machine changes the traditional single-sided grinding.If your knife has a shattered or broken blade,your have to remove the broken part with a grindig wheel first and then get the blade to be sharpened.