Samura SWS-400 Kitchen Universal Sharpening Whetstone #400

The Samura SWS-400 Kitchen Universal Sharpening Whetstone #400 is an essential tool designed for both professional and home kitchen environments. Manufactured by Samura, a brand known for its commitment to Japanese knife-making traditions, this single-layer water whetstone is engineered to restore dull edges, fix blade geometry, and maintain optimal sharpness for your culinary tools. Whether you are working in a commercial catering establishment or preparing meals at home, this sharpening stone ensures precise and consistent results.

Advantages

This sharpening whetstone effectively removes a significant amount of metal to repair serious blade defects, chips, and nicks. It allows users to modify the blade thickness if the knife is heavily worn and can be used for editing blades of any size. The manufacturing process utilizes high-quality materials, and the inclusion of a specialized rubber platform ensures the stone remains completely stationary and safe during operation. When soaked in water prior to use, the stone produces a natural suspension that acts as both a lubricant and a cooling agent, preventing the blade from overheating due to friction.

Suitable for

• Restoring heavily worn or damaged kitchen knife blades
• Fixing chips, nicks, and correcting the geometry of cutting edges
• Sharpening knives of various sizes for home kitchens and catering businesses

When it may not be suitable

This product is not recommended for fine polishing or the final razor-sharp finishing of blades due to its coarse grit rating. For routine maintenance and minor touch-ups on already sharp knives, a higher grit stone should be used instead.

Key specifications

• Grit rating: 400 grit
• Single-layer water whetstone surface
• Includes a stabilizing rubber base platform

How to use

Before beginning the sharpening process, submerge the whetstone in water for several minutes until it absorbs enough moisture to release a lubricating suspension. Place the stone securely onto the provided rubber platform on a flat, stable surface to prevent slipping. Hold the knife at the correct angle against the abrasive surface and pass it smoothly across the stone, applying even pressure. Alternate sides until the desired edge geometry is restored, ensuring the generated slurry remains on the surface to act as a lubricant and cooler during the process.

What to consider before purchase

• Ensure the #400 coarse grit matches your current knife maintenance needs
• Confirm the intended use involves repairing damaged or dull edges rather than fine polishing
• Verify that you have a suitable flat surface to place the anti-slip rubber platform during operation

Soak the Samura SWS-400 whetstone in water for a few minutes before each use to ensure proper lubrication, and always clean the stone thoroughly after the sharpening process is complete.