Large design in red-black color. Suitable for all knives without corrugations or with a single-edged blade. ALWAYS USE THE GRINDING MACHINE WITH WATER.
Fill the case with water and leave it filled when sanding. Fix the whetstone with one hand. The knife comes vertically into groove No. 1 (white ceramic wheel). Place the index finger of the other hand on the back of the knife. Push about 7-8 times (or as necessary) forward and pull backward. Repeat the procedure in groove 2. Excessive pressure can damage the wheel! White circle - coarse grain /// pink circle - medium grain.