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These sharpening products, made by one of the most popular Japanese whetstone manufacturer Naniwa, are called "Chosera" series meaning "Super Ceramic" in Japanese. The wide sharpening area, also with support by a base (except #10000 grit to be used for swords), makes you sharpen your knives stably. Even blades of hardened (such as blue steel) can be more quickly and satisfactorily bladed. Particles are even, excellent in abrasive, to finish into good & sharp blade several times faster than conventional whetstone
Size: 210mm L x 70mm W x 25mm H (#10000 grit is 30mm H)
NEW IN BOX. Shipped with careful packing.
SHARPENING INSTRUCTION
1. Sprinkling with water , which act as a lubricant.
2. The knife blade should be kept at an angle of 15 – 20 degree on the stone.
3. During sharpening, slurry will appear but do not wash or wipe off, just keep on sharpening.
4. Knife blades with a double edge should be sharpened 50% on the front and 50% on the back. Knife blades with a single ground edge should be sharpened 90% on the front and 10% on the back.
5. After sharpening, knives should be washed with hot water and dried well.
< Usage >
kitchen knives ,chef's knives , etc