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KISEKI Diamond Whetstone parts
Closeup of hands sharpening a KISEKI knife with a KISEKI Knife Attachment for Sharpening on a KISEKI Diamond Whetstone in a kitchen table
KISEKI Knife Attachment for Sharpening on a KISEKI Santoku Knife over a KISEKI Diamond Whetstone
KISEKI Diamond Whetstone and KSIEKI Knife Attachment for Sharpening vertically aligned
KISEKI Diamond Whetstone for Santoku mounted next to a KISEKI Knife Attachment
KISEKI Diamond Whetstone for Petty mounted next to a KISEKI Knife Attachment
Closeup of kitchen shelf where there is a KISEKI Diamond Whetstone and a KISEKI Knife Attachment for Sharpening
KISEKI Diamond Whetstone parts aligned vertically
Lateral view of a KISEKI Diamond Whetstone by Fukuda Hamono
Closeup of hands using the KISEKI Knife Attachment for Sharpening on a KISEKI Santoku Knife
KISEKI Knife Attachment for Sharpening by Fukuda Hamono
KISEKI Knife Attachment for Sharpening on a KISEKI Santoku Knife over a light grey background
KISEKI Diamond Whetstone light grey box with KISEKI Knife Attachament for Sharpening light grey box
KISEKI Diamond Whetstone parts
Closeup of hands sharpening a KISEKI knife with a KISEKI Knife Attachment for Sharpening on a KISEKI Diamond Whetstone in a kitchen table
KISEKI Knife Attachment for Sharpening on a KISEKI Santoku Knife over a KISEKI Diamond Whetstone
KISEKI Diamond Whetstone and KSIEKI Knife Attachment for Sharpening vertically aligned
KISEKI Diamond Whetstone for Santoku mounted next to a KISEKI Knife Attachment
KISEKI Diamond Whetstone for Petty mounted next to a KISEKI Knife Attachment
Closeup of kitchen shelf where there is a KISEKI Diamond Whetstone and a KISEKI Knife Attachment for Sharpening
KISEKI Diamond Whetstone parts aligned vertically
Lateral view of a KISEKI Diamond Whetstone by Fukuda Hamono
Closeup of hands using the KISEKI Knife Attachment for Sharpening on a KISEKI Santoku Knife
KISEKI Knife Attachment for Sharpening by Fukuda Hamono
KISEKI Knife Attachment for Sharpening on a KISEKI Santoku Knife over a light grey background
KISEKI Diamond Whetstone light grey box with KISEKI Knife Attachament for Sharpening light grey box

Description

Crafted in the legendary blade city of Seki in Gifu Prefecture, this diamond whetstone can be used to keep the sharpness of your KISEKI cemented carbide blade. 

The KISEKI Diamond Whetstone has one-sided #1200 grit and comes with a knife attachment made of PP+ Ceramic, that helps creating the perfect angle for sharpening and a natural wood base. (*only use with KISEKI knives)

KISEKI knives are characterized by their good edge retention compared to steel or stainless steel knives, but still the sharpness of the blade will deteriorate over time. Ordinary abrasive tools will not work well with thecemented carbide material of the KISEKI blades, so the smithy recommends this specific stone for their blades.

KISEKI Diamond Whetstone

$163.90 - $163.90
$163.90
$163.90 - $163.90
$163.90

Size: For Petty
Made in Japan icon

Made in Japan

All products are crafted by real Japanese craftsmen with years of experience, as featured in our +1.8 million-subscriber YouTube Channel documentaries.

Crafted in the legendary blade city of Seki in Gifu Prefecture, this diamond whetstone can be used to keep the sharpness of your KISEKI cemented carbide blade. 

The KISEKI Diamond Whetstone has one-sided #1200 grit and comes with a knife attachment made of PP+ Ceramic, that helps creating the perfect angle for sharpening and a natural wood base. (*only use with KISEKI knives)

KISEKI knives are characterized by their good edge retention compared to steel or stainless steel knives, but still the sharpness of the blade will deteriorate over time. Ordinary abrasive tools will not work well with thecemented carbide material of the KISEKI blades, so the smithy recommends this specific stone for their blades.

Specifications
Length 255 mm
Width 71 mm
Height 15 mm
Weight 310 g
Grit Type Super Fine (#1200)
Made in Seki-shi, Gifu, Japan

*Includes a knife attachment (PP + Ceramic) and a wooden base.

Product Care Instructions

How to Use & Care for Your KISEKI Diamond Whetstone

Wet the surface with water before sharpening — never soak a diamond whetstone. Fit your KISEKI knife into the included attachment to hold a consistent angle, then work the blade along the #1200 surface, keeping it wet. Use only with KISEKI knives; ordinary whetstones won't sharpen tungsten carbide.

Afterward, rinse, wipe dry, and store in a dry place. A diamond whetstone never needs flattening.

IMPORTANT SAFETY INFORMATION
Keep out of reach of children. Use on a stable, flat surface. Keep fingers clear of the blade edge. For kitchen knife use only.

Shipping + Return Policy
Shipping Policy

All products are crafted, inspected, and shipped directly from Japan.

Please allow up to 5 business days for order processing before dispatch.

Click here for more info on our shipping policy.


Return Policy

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

Click here for more info on our return policy.

Customs Fees & Other Taxes

Import duties, VAT, or local customs taxes may apply once your order reaches your country.

These are set by your local customs authority and are not included in our product prices or free shipping. We suggest contacting the responsible institutions to find more information.

These fees are the customer's responsibility and thus must be paid upon delivery.

FOR U.S. CUSTOMERS: As of May 8, 2026, all U.S. orders are shipped DDP (Delivered Duties Paid). Customs duties and import taxes are included for US customers in the final price shown at checkout.

EU GPSR & Safety Information

Manufacturer Information:

  • Company Name: Fukuda Hamono Kogyo Co., Ltd.
  • Address: 353 Oyana Seki, Gifu 501-3941

EU Responsible Person:

  • Company Name: TerrainQ Solutions UG
  • Address: Franz-Ehrlich-Straße 12 12489 Berlin, Germany
  • Phone: +4917643242825
  • Email: info@cert-rep.com

Product Information:

  • Product Type: Japanese Kitchen Knife
  • Intended Use: Food preparation and kitchen use only
  • Country of Origin: Japan

IMPORTANT SAFETY INFORMATION

Handle with care. Do not use if the blade is chipped or the handle is cracked or loose. Inspect before use. Hand wash only — do not place in dishwasher. Use only on appropriate cutting surfaces. When sharpening, place on a stable surface atop a damp mat or cloth to prevent slippage and resulting injury during sharpening. Wash hands after sharpening.

About this artisan

KISEKI Petty Knife - Japanese Food Craftsman Shop

Fukuda Hamono

For centuries, Japanese blades have balanced artistry and performance. Yet, traditional steel knives came with trade-offs, carbon steel rusts, stainless steel dulls.

Seeking a better way, engineer Keisuke Fukuda, set out to combine the best of both worlds, pioneering the use of ultra-hard cemented carbide in a kitchen knife.

The result was the KISEKI collection of knives made by his family company Fukuda Hamono, a workshop with more than 126 years of history. The KISEKI knives have an edge made from tungsten carbide that glides effortlessly, holding its sharpness longer than conventional blades.

But creating KISEKI required pushing beyond the limits of conventional knife-making.

The dense, weighty carbide cannot be pressed or laser-cut like steel. Each blade is wire-cut over ten hours with 1/1000 mm precision, then finely ground using diamond wheels to achieve a razor-thin edge that preserves the cellular structure of food.

Every knife is made to deliver the same flawless quality, every single time.

Learn more

KISEKI: by FUKUDA HAMONO: when a 126-year blacksmithing legacy and cutting-edge engineering come together in Seki, Gifu prefecture.
Fukuda Hamono craftsmen checking a Kiseki Santoku knife inside the workshop

Why buy from us?

Japanese Food Craftsman focus on introducing and supporting Japanese artisans, helping them continue their craft and preserve traditional culture for future generations.

When you purchase through us, your support goes to the maker behind the knife, not to mass production or anonymous distribution.

Through our global +1.8 million YouTube community, we share the stories, techniques, and philosophy of these craftsmen with viewers around the world.

The knives we offer are selected through direct relationships and transparent storytelling, not catalogs. Choosing this knife means supporting real people, real skills, and craftsmanship meant to last.

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