It is win by West Germany international multinational patent adopt special material of Hi-Tech make to import, its hardness is up to 9.5°, the same as hardness of diamond.

Scope of application :
This product is suitable for kitchen knife, scissors, shaver, fruit juice mixer knife, tulwar, pliers, industrial knife, any form cutter, can is it get rid of metal, pigeonhole grams of strength material deckle edge two of in the front to blow also, can cut the glass and tile even more.

Operation method :

1. Uses the right angle parts of this product that both sides to scrape the knife's blade back and forth slightly.
2. The best relative angle which operates a product is that 20°~25°.
   " make sure not to exert oneself excessively, "
3. The knife need only be rubed the form of its edge (two-sided knife rubs two-sided).
4. The level parts of the scissors, pliers, can't shave and rub.