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Umajiyama Asagi

Umajiyama Asagi

$190.00 USD
$190.00 USD
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Shipping calculated at checkout.
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dimensions

• Length: 7-3/4" (197mm)
• Width: 2-3/4" (70mm)
• Height: 3/4" (20mm)
• Weight: 1.57Lb (715g)

Unleash the Potential of Your Blades with this Umajiyama Asagi JNAT
Discover the exceptional sharpening prowess of this Umajiyama Asagi Japanese Natural Whetstone. Renowned for its hardness and unique finishing properties, this stone will elevate your sharpening experience to new heights.
Exceptional Hardness for Lasting Performance:
With a hardness rating of 4.5, this JNAT is built for durability and longevity. It resists wear and tear, ensuring a consistent sharpening surface for years to come.
Controlled Sharpening with Moderate Slurry:
Enjoy a clean and controlled sharpening experience with moderate slurry production. This allows for precise feedback and effortless sharpening, resulting in exceptionally keen edges.
Distinctive "Frost" Finish for Enhanced Cutting:
Achieve a unique "frost" finish on your blades, characterized by a fine, subtly textured surface. This finish offers a balance of sharpness and bite, perfect for a variety of cutting tasks.
Key Features:
* Hardness: 4.5 (Exceptional durability)
* Slurry: 2 (Controlled sharpening)
* Finish: Frost (Unique, subtly textured edge)
* Origin: Umajiyama, Japan (Renowned for high-quality JNATs)
Benefits:
* Sharpen a wide range of blades with precision and ease.
* Experience the tradition and artistry of Japanese natural whetstones.
* Achieve a distinctive edge that enhances cutting performance.
* Enjoy a durable and long-lasting sharpening tool.
Elevate your sharpening game with this Umajiyama Asagi JNAT. Order yours today and experience the difference!

care instructions

​Initial Inspection & Cleaning: Before use, gently inspect your Japanese natural whetstone (JNAT) for any loose grit or debris, and wash the surface with clean water and a soft brush.
​Soaking Guidelines: Understand your specific stone's hardness; softer stones (like Aizu or Amakusa) generally require a brief soak of 10 to 20 minutes, while harder, finer finishing stones (like Tomae or Suita) often perform best as splash-and-go stones requiring only surface hydration.
​Avoiding Thermal Shock: Never submerge a cold or dry stone in hot water, and avoid exposing your JNAT to extreme temperature shifts, which can cause cracking or structural failure.
​Slurry Generation: Build a natural abrasive slurry using a diamond plate, coarse stone, or a matching nagura (such as a Tsushima Nagura) to jump-start cutting action and condition the surface for your blade steel.
​Water Maintenance: Keep the stone adequately lubricated with clean water throughout the sharpening session, periodically rinsing away accumulated swarf to maintain optimal feedback and cutting speed.
​Drying Process: After sharpening, rinse the stone thoroughly under clean running water and allow it to dry completely in a well-ventilated, shaded area away from direct sunlight and artificial heat sources.
​Long-Term Storage: Store your dried JNAT in a stable environment where it won't be subjected to heavy impacts, freezing temperatures, or high humidity fluctuations that could compromise its integrity.

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