Producing Area: Tsushima, Nagasaki - Japan
Strata: N.A. (see notes)
Appearance: Almost black-blue when dry, but very black when wet.
Size: 207mm x 82mm x 50
Grit Range: 4000-7000
1-5 Scale: 1 = Less, 5 = More
Hardness Level: 4
Scratch Depth: 2
Wear Rate: 2
Self Slurry: 2
Ease of Use: 2.
Recommended Uses: Best for pre-polish or finishing polish, but can also do keen edges, and some tools and razors.
Notes: Tsushima has become a fairly well-known stone over the past decade, especially given its rather unique origin and relative affordability. They are quarried under water off the small island, Tsushima, which is located between South Korea and Kyushu, the southern most main island of Japan. They are remarkably consistent both within the stone itself, and from stone to stone, and often why the Nagura are widely used. The stone is fairly hard, although it can be gouged. The feedback is pleasant, but requires some skill not to slip when sharpening edges. The particles are fine and friable, making them ideal for polishing. Hard enough for some tools and razors. A good stone for beginners or intermediate users looking for a final polisher or one of the last stones in a polishing sequence.
Disclaimer: Given the natural aspect of these stones, all subjective qualities are our estimates and may vary slightly from your exact expectations and assessment. The images shown and characteristics described are an example. If purchased, yours may differ slightly in appearance and qualities. Dimensions, weight, and stamps may be different from listed if it has been tested.