This is a Japanese Natural Whetstone, a Shohonyama Ōhira Uchigumori (Awasedo) weighing 1695 g.
It is a rare stone, special grade (Tokkyū), and suji-nashi with subtle Renge (lotus) patterns. Traditionally used in the final stages of Japanese sword polishing, this Uchigumori is also excellent for knife sharpening, chisels, and other woodworking tools.
Dimensions: approx. 207 × 77 × 45 mm
Weight: 1695 g
Type: Uchigumori, hard–medium grade finishing stone with faint Renge patterns
Performance: Slightly hard Uchigumori that produces a fine pink slurry, ideal for hazy kasumi finish, hamon polishing, and creating a refined blade contrast.
Condition: Special grade, with no harmful lines or cracks.
Protection: Sides and back sealed with Ishisan water-based protective coating.
Ōhira Uchigumori stones are regarded as valuable vintage tools, appreciated by professional sharpeners and collectors.
This stone is truly one of a kind, and with its presentation and heritage, it also makes a thoughtful unique gift, original gift, or Christmas gift for chefs, craftsmen, and enthusiasts.
