This is an Aritsugu sujihiki knife (slicer). The blade length is approximately 26cm. It is single-edged. The steel is Swedish steel (from Uddeholm). The back is stamped with Swedish steel K121 UHB. This is an Aritsugu slicer. Swedish steel is characterized by its hardness, toughness, wear resistance, and rust resistance, but unfortunately, there was rust, so it has been repaired, but some pitting marks remain on the flat surface. (Pitting seems to be impossible to remove by grinding) It has been mostly repaired and mirror-polished, but some fine scratches remain. I recommend it if you don't mind. As it is a sujihiki knife, it can also be used for sashimi or removing fish skin. It has a variety of uses. The cutting edge and the flat surface are mirror-polished. It is also lightweight and generally clean, so I think it can be used for a long time. It is recommended for both professionals and general households. The sharpening stones used are Kitayama 8000 grit, Shapton 12000 grit, and a natural whetstone for finishing. It is in a very sharp condition, so it can be used immediately. ● Size: Blade length approx. 265mm ● Thickness: approx. 2.2mm at the thickest point ● Overall length: 385mm ● Weight: 169g #knife #slicer #Aritsugu #26cm