The 2000-grit side is designed for regular sharpening and edge maintenance, while the finer 6000-grit side provides a refined finishing surface. With a non-slip natural bamboo base, a 15° angle guide, a corundum flattening stone and an instruction manual, the set offers a considered approach to sharpening by hand.

Two grits, one whetstone

The double-sided ceramic whetstone provides two sharpening surfaces in a single stone:

• 2000 grit: a fine sharpening surface for regular edge maintenance.
• 6000 grit: an extra-fine surface for refining and finishing the cutting edge.

Measuring 200 × 80 × 30 mm, the generously sized stone provides ample space for smooth, consistent sharpening strokes.

A stable bamboo base and practical accessories

The non-slip natural bamboo base helps keep the whetstone stable during sharpening. The included 15° angle guide helps maintain a consistent sharpening angle when that angle is suitable for the knife being sharpened.

A corundum flattening stone is included to help restore an even whetstone surface as it wears over time. The set also comes with a sharpening instruction manual.

Who is it for?

• Home cooks who want to maintain their kitchen knives.
• Owners of Japanese-style knives who prefer sharpening by hand.
• Cooking enthusiasts interested in learning whetstone sharpening.
• Anyone looking for a thoughtful gift for someone who appreciates well-maintained kitchen tools.

Product details

• Brand: KOTAI
• Product type: Japanese-style knife sharpening set
• Whetstone: double-sided ceramic water stone
• Grit: 2000/6000
• Whetstone dimensions: 200 × 80 × 30 mm
• Base: natural bamboo, non-slip
• Angle guide: 15°
• Flattening stone material: corundum
• Package dimensions: 29.3 × 11 × 5.9 cm
• Weight including packaging: 1.38 kg

What’s included?

• 1 × double-sided 2000/6000-grit ceramic whetstone
• 1 × non-slip natural bamboo base
• 1 × 15° sharpening angle guide
• 1 × corundum flattening stone
• 1 × sharpening instruction manual

Good to know before purchasing

The 2000/6000-grit whetstone is primarily intended for regular edge maintenance and fine finishing. Very dull or damaged blades may require a coarser sharpening stone first.

Follow the included instructions and your knife manufacturer’s recommended sharpening angle. The supplied 15° angle guide may not be suitable for every knife.

Frequently asked questions

What does 2000/6000 grit mean?

These numbers refer to the two sharpening surfaces. The 2000-grit side is designed for regular sharpening, while the finer 6000-grit side is used to refine the cutting edge.

Does the set include two whetstones?

No. It includes one double-sided ceramic whetstone with a different grit on each side.

What is the 15° angle guide used for?

The guide helps maintain a consistent sharpening angle. Check that a 15° angle is appropriate for your knife before using it.

Why is a flattening stone included?

The corundum flattening stone helps restore an even surface when the whetstone becomes uneven through use.

Is the set suitable for beginners?

The angle guide and instruction manual help make whetstone sharpening more approachable. Achieving consistent results still requires practice.