Knife Sharpener

With the help of a knife sharpener, knifes can be sharpened.

Knifes are sharpened by rubbing against a hard surface, a stone, or a smooth surface along with some rough elements, such as sand. For better sharpening, a strop is frequently used. If you want to sharpen your knife very sharply, care should be taken to maintain a smaller angle between the stone and blade.

Considering the application and grind, the sharpening procedures are different for different knives. For instance, surgical knives are fragile but extremely sharp, and are usually disposed of, than being sharpened.

History of Knife Sharpener

In early days, people didn’t have any instruments to sharpen a knife. They used to sharpen the knife by grinding it against a hard and rough surface, like rock. In this process, they used either water or oil for efficient grinding.

After inventing the cycle, the early people tried to rotate a circular shaped rough iron component. And, while revolving this, they kept the knife on the wheel, which sharpened the knife efficiently. This method worked well and continued for a long time.

As technology progressed, nowadays, electric knife sharpeners have been invented that reduce the human effort dramatically. Pictures of these electric and manual knife sharpeners are shown in the figures.

Electric Vs Manual Knife Sharpeners

There are some similarities and dissimilarities between manual and electric knife sharpeners. Let us discuss briefly about those similarities and dissimilarities.

In the market, one can find different shapes and sizes of knife sharpeners with unique features, and performances. Experts believe that manual knife sharpener is more efficient than electric knife sharpener, but if you want to sharpen more number of knifes, it is not possible to use the manual knife sharpeners all the time.

In such cases, electric knife sharpeners come into play. Sharpening a knife with an electric sharpener takes very less time and you can sharpen lots of knives in very little time with high accuracy, and zero risk of any physical damages to human body.

Fit ceramic rods and rod systems come under manual knife sharpening techniques. Some of the rod-type manual sharpening systems called the Sypderco Tri-Angle Sharpmaker are especially designed to sharpen both serrated and straight blades. Rod system knife sharpener is also very good manual knife sharpening device.


One more manual choice is slotted sharpening system that uses wheels. With the help of this knife sharpener, sharpening a knife is quite simple and it is used to sharpen only straight blades. You can’t use this system for curve type blades.

Coming to electric knife sharpeners, even they offer less control over knifes, using these electric knife sharpeners is very simply and quick. Most of the electric knife sharpeners have 2 or 3 slots and each cuts the knife edge at an abnormal angle to slowly filter the edge. Few electric knife sharpeners can sharpen both serrated and straight blades.

Some more things that customer should know about manual and electric sharpener. Manual sharpeners come in small sizes and shapes, whereas an electric knife sharpener is in large size. If you consider control and time, electric knife sharpener is better, because it takes less time to do the process.