Arkansas black (Ultra fine)

Abrasive bars, natural Arkansas Black are ones of the best natural sharpening stones. They are mined in the mountains of Arkansas in the United States.
Unlike synthetic stones, they do not have grains of the same size - for this reason, they can not be evaluated on classical scales.
The bars have a quartz structure of fused crystal grains. The stones are aligned and completely ready to work.

Stone dimensions: 151x23x6 mm < br> Grit: 2000-3000 Grit
Material: silicon dioxide

Work recommendations: natural Arkansas Black stones do not require soaking in water. It is better to work on stones using oil.
The stone may differ slightly from the one shown in the photo.