Souryurin 135mm Hammered Damascus Petty Usuba/Kakugata Usuba The top can be folded

The top can be folded over to fit knives up to 300mm in blade length

with results depending on the stone hardness

and 3000 grit stones

but is rather a "zen-ko" knife

This stone should be soaked for about 5 minutes before use

Souryurin 135mm Hammered Damascus Petty Usuba/Kakugata Usuba The top can be foldedProduct Description Detailed Specs Measurements The Souryurun series features a VG 10W core, clad in stainless hammered Damascus steel. VG10W adds tungsten to VG10 for increased edge retention. A long time ago, when I was still cooking professionally, I used knives from Ryusen. Ryusen used to be one of the most popular OEM makers in Japan, as they had an excellent reputation for the knives they produced. More recently, they have stopped all OEM work