Kai Combination Whetstone 1000/4000 Grits AP-0334

Kai Combination Sharpening Stone 1000/4000 AP-0334 | Seki Magoroku. Buy the Kai AP-0334 Japanese sharpening stone (1000/4000 grit) from the Seki Magoroku series. Medium sharpening and professional polishing with a non-slip base. Fast shipping!

Restore the professional edge of your kitchen knives with traditional Japanese precision. The Kai AP-0334 combination sharpening stone, with its double-sided, 1000/4000 grit, from the distinguished Seki Magoroku line, is the essential tool for professional chefs and food enthusiasts seeking to maintain a flawless, smooth, and precise cut. Manufactured in Japan to the highest quality standards, this water whetstone integrates two fundamental grit sizes into a single compact and functional piece.

Stone Dimensions: 184 mm. 62 mm x 28 mm (approx.)

Double-Sided Sharpening Stone: 1000 Grit and 4000 Grit

1000 Grit Side (Yellow/Light Brown - Medium Sharpening): Designed to correct daily wear, redefine the bevel, and restore optimal sharpness to your knife blades.

4000 Grit Side (Gray/Dark Brown - Fine Polishing and Honing): Removes residual burrs and provides a mirror finish, leaving the blade extremely sharp for maximum precision cuts (ideal for sushi, sashimi, and delicate vegetables).

Case with Non-Slip Base and Water Reservoir

The package includes a multifunctional black hard case that serves two key functions:

Stable Support: Keeps the stone fixed and steady during the sharpening process thanks to its non-slip feet.

Reservoir and Drainage: Allows for proper soaking of the stone before use and collection of water and abrasive paste residue.

Technical Specifications

Brand: Kai (Japan)

Series: Seki Magoroku (関孫六)

Model / Reference: AP-0334

Stone Type: Water Whetstone

Grit: #1000 (Sharpening) / #4000 (Fine Polishing)Stone Dimensions: 18.4 cm × 6.2 cm × 2.8 cm (approx.)

Includes: Combination Stone + Non-slip Ventilated Case/Base

Origin: Made in Japan

Advantages of the Kai 1000/4000 Grit Whetstone Compared to Other Options

Savings and Versatility (2-in-1): You don't need to buy two separate stones; you have the perfect combination for regular maintenance and fine polishing in a single piece.

Universal Compatibility: Works perfectly with Japanese knives (Santoku, Gyuto, Deba, Yanagiba) and Western knives made of stainless or carbon steel.

Greater Durability: Its high-density abrasive composition ensures slow and even wear over time.

How to use the Kai AP-0334 Sharpening Stone step by step?

Pre-soaking: Submerge the stone in water for 10–15 minutes until no more air bubbles rise.

Securing: Place the stone on its included non-slip base.

Step 1 - Sharpening (1000 Grit): Maintain a constant angle (between 10° and 15° for Japanese knives, 15° to 20° for Western knives) and slide the blade with gentle pressure along the 1000-grit surface until a light burr is created.

Step 2 - Polishing (4000 Grit): Turn the stone to the 4000 grit side and repeat the process to smooth the blade and achieve a mirror edge.

Cleaning: Rinse the knife and stone with clean water after use and allow the stone to air dry completely before storing it in the case.