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Before buying hones ...

Before buying many customers are faced with the following question: which stone would serve me best? Which stone do I really need from the many possible sizes, forms and grades of particle sizes.

A rule of thumb in sharpening, that we always start with coarser stones-containing larger abrasive material particles - and use the finer and finer ones –containing smaller abrasive particles- afterwards. These will leave smaller scars on the surface of the steel, and the finer stones can be used to polish the fine edge.
The following hints might help to choose the right stones for the intended applications:


A/ Based on the size and type of cutlery:

For professional use, larger blades, household use, average kitchen knives, pocket knives, small fixed blades: HCA
For cleaning other stones, field use, and pruning shears: HCC and HCP
Pedicure and manicure tools: HCJ

B/ Based on the grit (or abrasive particle size):

If we want a single stone: HCA400
-Perfect for butchers and to hone pen knives as a one stone set.

1 stone: HCA600
- This is sufficient for the permanent maintenance of a relatively well-maintained, moderately dulled edge,, daily sharpening chores, It provides a microserrated edge. .

2 stones: HCA280, 600
- Quick profiling on the 280, and the rest is the same as with the one stone solution. Ideal combination sharpening ceramic knives

3 stones: HCA280, 600, 1000
With the 1000 the edge can be further refined and polished, and ideal for burr removal.

The ultimate set: HCA180, 280, 400, 600, 1000, 1200
For those who want to achieve perfectness in knife sharpening.

For each combination to clean and maintain the larger stones we recommend the small HCC 180.

Water or oil?

Water. Or oil. Its equal for the stones, you can decide: The choice is yours. In many cases, water is far more convenient to use, as it dries quickly, leave no marks, not cumbersome to use at all, but sometimes oil is a better choice: for example to sharpen pedicure tools or carbon steel blades. It does not matter if you start using your stone with water, and then you want to switch to oil. This is the less complicated case. One just needs to wait till the stone is dry (and this process can be accelerated by taking the stone in the oven up to around 250 degrees Celsius. Any in organic oil can be used (such as WD 40), organic oils should be avoided because the organic material will decompose and coagulate. If we use oil we do not have to submerge the oil, it is enough to sprinkle some drops on it. The porous surface will be soon saturated with the oil. The oil treated whet stone can also be cleaned with applying a water bath and a smaller cleaning stone such as the HCC180.

FEPA F orJiS?

Many people may be confused by the different grit numerations used by different manufacturers. stones. It is often asked which numeration is the correct. The answer is both of them. FEPA F number is indicating grit according to European standard, while the JIS is size designation by the Japanese Industrial Standard. Both numbers are based on the size of the abrasive particles measured in micron. For example the same 2 micron SiC particles are designated by the European standard F1500, while for the Japanese standard it is JiS 6000. The European standard is linear, while the Japanese is an exponential one.

SiC: Silicium carbide
(SiO2) inorganic compound is a very tough material, its hardness is 9.6 Mohs, the second hardest material after the diamond.

Micron: the 1 millionth of a meter.


After buying hones ...

First of all I would like to congratulate on the purchase on your new whetstone, and express my sincere thanks for choosing our product. I would like to use this opportunity to give you some advice on the maintenance of our stones, in order that can provide good service for you.

Each sharpening stone of our product line is a ceramic stone baked at a high temperature that are not harmed by any commonly used household acid or lye.

Our ceramic stones are wet sharpening stones, so it is advised to submerge them in water for around 10-15-20 minutes before using them. We should leave the stones in the water as long as bubbles are formed on their surface.
After the stones are thoroughly watered they should be placed on a non slippery substrate: a sponge, towel, kitchentowel, cloth, paper towel, or semi-circular silicone bumper buttons).

The surface should be horizontal, if water does not spill from the surface, it is good. We can place the sharpening stone turned in a 45 degree from us to facilitate sharpening. Use slow, deliberate movements in order to keep constant the edge bevel angel. We can use a continuous swipe through the surface, or use the Japanese more repetitive small back and forward motions.

The appropriate method should be developed individually, some people prefer pushing the blade against the stones with edge forward, while others like to pull it spine forward. As we advance towards the finer grit stones less and less pressure should be applied on the blade.

After honing, clean the surface of the sharpening stone with the small HCC180 stone. After use dry the stones. If you live them in the water permanently algae might grow on its surface and it makes the stone slippery.

 

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• In order to guarantee the continuous development of our products, I reserve the right to change the form, size and composition of our products without any prior notice. • The surface of the stones due to the baking treatment might slightly differ from being completely plain. In the case of these individual hand honed stones their size might slightly differ from the given specifications. • The surface colour pattern does not affect the grinding properties of our stones. • The size of the abrasive particles is given according to the FEPA standards. Their JIS /Japan Industrial Standard/ equivalent is also given.

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