Long-selling Japanese whetstone series “Ha no Kuromaku” by Shapton — the classic solid ceramic stones loved by professionals worldwide.
Each grit is color-coded for easy identification, the world’s first system of its kind.
Comes with a durable plastic case that also functions as a non-slip sharpening base.
The stones can be used with water or as oil stones, and do not require soaking.
Perfect for sharpening kitchen knives, woodworking tools, and outdoor blades.

Product Details

Brand: Shapton (刃の黒幕 / Ha no Kuromaku)
Grit: #320 / #1000 / #2000 / #5000
Size: 210 × 70 × 15 mm
Weight: approx. 500 g each
Type: Ceramic whetstone (no soaking required)
Includes: Plastic storage case usable as a sharpening stand

🔪 How to Choose the Right Whetstone

#320 (Coarse)

For repairing a dull or chipped blade.
Recommended when the knife’s sharpness has significantly decreased.

#1000 (Medium)

The most versatile grit — often said to make a perfect edge even without a coarse stone.
Great for regular maintenance and for sharpening most kitchen knives.

#2000 (Medium-Fine)

A convenient middle-range stone that works as both a medium and a finishing step.
Sharpens quickly and saves time by covering two stages at once.
Ideal for users who want a smooth, refined edge without switching stones frequently.

#5000 (Fine)

For polishing and refining the edge to a mirror-like finish.
Use after a medium or medium-fine stone for the best sharpness and shine.