The usuba is a traditional Japanese style knife designed specifically to cut vegetables. Japanese cuisine stresses the importance and beauty of seasonal ingredients, referred to as `shun.’ The literal translation of usuba is `thin blade.’ Without this incredibly sharp and thin blade, the knife would break down the cell walls of vegetables, causing ingredients to discolor and decrease in flavor. Originated in Kanto (Tokyo) region.

The kamagata usuba is a traditional Japanese knife designed to work with vegetables. Unlike the Kanto version of the usuba, the kamagata usuba has a pointed tip, which allows for more delicate work and decorative carving. Originated in Kansai (Osaka) region.