Knife sharpeners are a basic item used in numerous workingenvironments, either domestic or industrial. Sharpeners are createdto restore the blade of a dull knife or to sharpen the knife to itsoriginal state. Most of these tools sharpen the knife by grindingthe blade with a hard, rough surface, typically stone, or it can bea soft surface that has solid particles, such as sandpaper.Sharpeners vary in size from small, hand- held manual sharpeners tobigger, electric sharpeners. These sharpeners can be easilyidentified by following the tips below.❖ Electric sharpeners are considered to be safer thannon-electric sharpeners, because they are basically fixed, and thusproviding more stability and efficiency. However, electricsharpeners don’t provide quite as much power as a manual sharpener.Ranging