Mikawa Shiro Nagura Botan Raw Huge Museum Grade Japanese Whetstone

This exceptional Japanese whetstone was selected by us and imported directly from Japan, thoroughly tested and sealed on sides and back to protect the stone for long term use.

It measures 295 mm (11.61 inches) long × 230 mm (9.06 inches) wide × 26 mm (1.02 inches) tall at the longest points, and weighs 2940 g (103.69 oz / 6.48 lbs).

Gigantic slab of Asano Stamped Mikawa Shiro Nagura Botan Raw Ore. This piece was obtained directly from the source who stamps these stones, therefore it can be guaranteed 100% authentic. The area around the stamp has been partially processed by the Craftsman in hopes of providing a "Guide" to lapping. This Nagura has been sealed with 4 layers of clear lacquer on the sides/backside. This giant Botan was has a divided surface for sharpening, currently due to the stamp placement. The stone starts to slope where the white transitions into the orange stripes on the lower face. The stone was stamped, front and center and we have applied a coat of thin lacquer to that area in hopes of preserving the stamps. The orange area on the upper face is a bit lower than the rest and can be lapped to complete the white surface. In regards to performance, this Botan is on the fine side of the spectrum for Botan. Perfect for razors and excellent for polishing as it begins to bring out fine details in iron and steel. It retains a lighter toned mist and the finish is unique, perfectly setting the stage in it's niche in a polishing progression. This fine quality translates to razors as well and will certainly make the ultimate Naka toishi for nearly any application. For knife edges, the stone provides a wonderful balance of tooth and refinement. Collector/museum Grade Stone!

A photo of the stone's polishing ability on soft and hard steels of a Japanese kitchen knife are shown.