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Tora-to (Tiger Stone) JNAT

Tora-to (Tiger Stone) JNAT

$120.00 USD
$120.00 USD
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dimensions

• Length: 7-3/4" (195mm)
• Width: 2-3/9" (60mm)
• Height: 1-5/8" (40mm)
• Weight: 2.56Lb (1163g)

This is a stunning example of a Tora-to (虎砥) JNAT whetstone, prized for its beauty and exceptional sharpening performance.
Origin: Likely an Amakusa stone, quarried in the Kumamoto Prefecture of Japan, known for their speed and ability to create a keen edge.
Grit: Medium grit (around 800), versatile for sharpening a variety of tools and knives.
Performance:
* Fast cutting: Removes metal quickly to establish a sharp edge.
* Good feedback: Provides audible and tactile feedback during sharpening.
* Beautiful appearance: Unique tiger-stripe pattern is visually striking.
* Relatively rare: Not as common as some other JNAT varieties, adding to their desirability.
Key features:
* Fast cutting: Quickly removes metal to establish a sharp edge.
* Good feedback: Provides audible and tactile feedback during sharpening.
* Beautiful appearance: The unique tiger-stripe pattern is visually striking.
* Relatively rare: Not as common as some other JNAT varieties, adding to their desirability.
Invest in this exquisite Tora-to JNAT whetstone and experience the joy of sharpening your blades to a razor-sharp perfection.

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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