It is common that, with time, the scissors or the knife will have problems to cut or that the hook will become less pointed after some time of use. Therefore, the sharpener has the function of returning the cutting power to the blades, facilitating home or professional use.

In recent years, modern sharpening models with a defined angle have emerged. They allow an inexperienced person to use it without difficulty. But it is important to consider some information to take advantage of it in the right way and avoid damage to the product.

In this post, you will learn more about the sharpener with a pre-defined angle, in addition to understanding what its features are and how to use it. Read on and see how to use a knife sharpener!

What are sharpeners?

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The sharpener is a maintenance tool for the blades of a tool. The objective is to recover or improve the wire, which means giving the object the cutting power.

Most sharpeners are made up of sharpening stones. They are of different granulations and are used for grinding and polishing the cutting object. The most common are natural stones (like Arkansas), synthetic ones (like ceramic ones), or diamonds. It is also possible to use a leather strap or strop.

The sharpeners with pre-defined angle were created to facilitate this work and to allow it to be carried out anywhere. In this equipment, the stones mentioned above are arranged at a pre-defined angle, without the need for manual adaptation, one of the greatest difficulties in this activity.

When to use a sharpener?

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There is no set time to sharpen objects. With use, it is possible to know if it is working or if it needs maintenance. A recommended test is to use a lighter and thinner surface, such as a sheet of paper. If the knife has difficulty sliding on the blade, then it’s time to use the sharpener.

A tip for maintaining the quality of the yarn is storage and the correct mode of use. It is not recommended to store the object without protection, which causes a shock with the other utensils. In addition, when washing, use the softest part of the sponge to prevent friction and damage to the blade.

Why use the preset angle sharpener?

The great benefit of the sharpener with a pre-defined angle is practicality. It is not necessary to have special experience or skill in this role to sharpen a kitchen knife or hook, for example. The equipment is ready for use, which prevents accidents or damage to the blade.

It is only necessary to pass the blade on both sides of the sharpener. The thick side is used first to rough it. Then, it is the turn of the thinnest side for polishing and finishing the wire, which helps in the sliding of the object and favors the cut.

If you are a sharpening professional or work directly with these tools, chances are you already have a course to learn how to do the job manually. The use of a traditional edging stone or extremely sharp edging is not recommended for those who have no experience, as it will be more complicated to find the correct finish and there are still risks of accidents.

How to choose the best knife sharpener?

It is important to note that each tool has a specific angle to be sharpened. Therefore, the type of wire must be respected, as incorrect equipment can lead to loss of edge. Therefore, the chosen sharpener must follow the manufacturer’s specifications.

The material of the product impacts the choice of the sharpener. Simpler and softer steels (like the 440c) can be sharpened with any quality equipment found on the market. The harder ones (VG-10 or CPM-S30V) need a more resistant sharpener, such as diamond stones, which guarantee the thinning of these models.

What are the types and uses of sharpeners?

It is possible to use the sharpener with predefined angle in several tools, such as knives, scissors, hooks and axes. Check out the main uses!

Kitchen knives

Cutting a meat, for example, can be more important than the point. Thus, it is necessary that the knife is well sharpened in order to be used correctly and not to damage it. A cutting edge reduces the force needed to cut and facilitates the work. To sharpen, just pass about three times in each granulation of the equipment, repeating the process if the cut is not satisfactory.


The scissor is a suitable object to cut materials with low thickness, which does not require much force. But it is essential that it is very sharp, especially for cutting more difficult surfaces, such as fabric. Sharpening is done with open scissors, with one tip at a time in both granulations (coarse and fine).

Fish hooks

After some fishing, your hook is likely to need some finishing touches. The tip should be sharp to facilitate capture and, for safety, ideally, it should be sharpened with equipment designed for this purpose. There are sharpeners with specific hook grooves.

Serrated blades

The serrated and semi-serrated blades serve various purposes, such as rescue knives, in which almost or the entire length of the blade is serrated. The sharpening of these blades is important since the cutting potential is greater than the conventional ones, but they must be carried out in equipment suitable for this.


An ax does not need to be sharpened, as it is its weight that cuts and knocks down the tree. Therefore, care must be taken not to make the thread too thin. The angle of the ax is greater so that it is not fragile, so it is essential to use a  specific sharpener.

In this post you saw that the pre-defined angle is ideal for the use of the knife sharpener to be the most practical and efficient. There is the possibility of using sharpening stones, which guarantee an extremely sharp blade, but modern sharpeners are indicated for those who need to sharpen their products more easily.

Crosster has several options for cutlery products. Discover our complete sharpeners catalog and choose the ideal one for your life!

Additional Helpful Pieces of Equipment

Self-defense has become an ally in times of increasing violence in large cities, and it is important to have notions of survival.

But it is worth mentioning that this content has an informative content, without encouraging the reaction to any type of approach, as we condemn all forms of violence.

News of approaches suffered by ordinary people, who have their objects stolen or even experience some threat to their physical integrity, is more common than we would like and it is essential that, in a moment of tension with this, the only concern is to stay alive.

Thinking about it, in this post we bring, in addition to the concept of personal defense, 5 types of combat equipment that can be used for protection – with emphasis on handling care and the legislation that governs the use. Check out!

What is self defense?

Self-defense teaches techniques for a disadvantaged person to protect himself from a dangerous situation, regardless of the physical size, age, sex, or condition of the aggressor and who defends himself. It is based on specific techniques, the development of self-confidence, and the control of fear.

If you want to adopt self-defense as a means of protecting yourself from these actions, it is essential that the techniques are known and practiced in serious places, with qualified professionals, to properly develop self-defense based on the legitimacy of survival.

Krav Maga, for example, is recognized worldwide as self-defense techniques that teach you step by step how to protect yourself and immobilize an aggressor in adverse reaction.

What types of equipment can be used for self-defense?

There are several pieces of equipment that can be used in self-defense and that are not considered as weapons prohibited by law. Check out 5 efficient options!

1. Knives

The knives can be used and carried on a daily basis, with the primary purpose of having a cutting tool at hand to open boxes, cut ropes, and, atypically, be used for defense.

2. Pocket knives

The pocketknives have a folding or retractable blade and different sizes, which can be carried casually in the pocket and produce serious injuries to the opponent. You need a certain amount of time and handling to open it efficiently or choose a model with a Wave opening to speed up your withdrawal.

3. Canes

Made of aluminum, iron or polymer, they can cause deep pain due to blows on sensitive areas of the body, causing momentary immobility and even stunning (which opens the door to escape).

4. Kubaton

The  Kubaton is a small stick, little bigger than the palm of the hand, with a specific tip that enhances the quick hit on vital points, capable of causing deep pain and neutralizing an attack action.

5. Push dagger

It is a dagger style with a short blade and a T-shaped handle, used by hand, usually between the index and the middle finger.

What does the law say about the use of this equipment?

Article 5 of the Federal Constitution of 1988 refers to the guarantees and fundamental rights of each citizen and, precisely in item II “” no one will be obliged to do or fail to do anything except under the law “.

Based on the principle of legality, the possession of personal defense instruments cannot be considered illegal under the law, leaving the user with common sense, adequate preparation and handling only in extreme cases.

As stated, the handling of this personal defense equipment must be done after training in serious locations, so that you are safe and know exactly how to react if you experience any unexpected situation.

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