This is a Sukenari Kamagata Usuba knife. The blade length is approximately 20cm. It is single-edged. The steel type is unknown. The handle is made of black buffalo horn. I previously listed this item, but I sharpened and polished it again because there were some areas of concern. I also replaced the medium grit stone and polishing compound with new ones. The Kamagata is a Kansai-style Usuba knife, versatile for decorative cutting, peeling, making Katsura-muki (thin sheets of vegetables), chopping, and even sashimi. It's a must-have from the high-end knife brand Sukenari. The mirror finish resulted in some minor rust marks remaining. If you don't mind, I recommend it. It's an old knife, but it has been sharpened and polished, making it beautiful and ready for long-term use. Both the cutting edge and the flat surface are almost mirror-finished. The weight balance is good, and the size is recommended for both professional chefs and general households. The sharpening stones used were Kitayama 8000 grit, Shapton 12000 grit, and finished with Shapton 30000 grit. It is in a very sharp condition and can be used immediately. ● Size: Blade length approx. 200mm ● Blade thickness: Approx. 3.8mm at the thickest part of the base of the blade ● Overall length: 355mm ● Weight: 205g #knife #Sukenari #Kamagata #20cm