Nakayama Shiki Tomae Ao Asagi Karasu Japanese Natural Finishing Whetstone

Selected by us and imported directly from Japan, this Japanese whetstone has been sealed on the sides and back with clear lacquer for protection and extensively tested to assess its performance. Complete details of our testing results are provided below.

Hardness: 5
Nakayama Shiki Tomae Ao Blue Asagi with suminagashi and Karasu layers. This excellent, old mined Nakayama Ao Asagi is a super hard finishing stone. Ao or Blue Asagi are mined from the lower Shiki Tomae layer known for producing hard, fine Asagi. Revered by craftsmen and collectors alike for their hyper keen edges and mirror polish. This dark blue Ao Asagi is deceptively fast for its hardness. It can be used for tool and knife finishing as it accepts planes with a smooth feel and a hint of cushion. Produces extremely keen and comfortable shaving edge rather quickly for its hardness. Can be used with Mikawa nagura progressions but feedback is a bit on the quiet side so best for experienced honers with Mikawa nagura. Water only finishing is quite simple and straightforward and appropriate for all skill levels. Slurry must be kept thin and work done to break down slurry to achieve crazy light saber edges.