Tsushima Black (Kuro) Nagura Small Kiridashi 4 mm Width of Spine

4 mm Width of Spine at Middle of Blade 4

The ultimate sinkbridge by Czar Precision

Whetstones will be supplied during the class

While his workshop Myojin Riki Seisakusho is probably not as famous as the established brands from Sakai and Echizen

Tsushima Black (Kuro) Nagura Small Kiridashi 4 mm Width of SpineTsushima black nagura is a type of natural sharpening stone extracted from the sea bed of the island of Tsushima. It is about 6000 grit equivalent, and is great for kitchen knife and straight razor sharpening. The small nagura is used as a mud creating stone for other larger natural stones. Measurements: 45mm * 45mm * 45mm 280g Note: Individual atural stone may vary slightly in apperance, size and weight.