The region from northeastern Aomori Prefecture to the Sea of Japan is known for its numerous excavated iron-making sites, indicating a long history of iron production. Utilizing the characteristics of this land, the craft of Tsugaru Uchihamono was developed. For over 350 years, skilled craftsmanship has been passed down through generations, resulting in high-quality knives known for their sharpness and durability. In Aomori Prefecture, which is particularly famous for apple production, these blades have been widely used as pruning shears for thinning fruit and cutting branches. Today, however, the tradition faces the threat of disappearing. In response, the city of Hirosaki, for example, has begun recruiting new artisans through the Regional Revitalization Cooperation Program, aiming to train the next generation of Tsugaru Uchihamono craftsmen and preserve this valuable tradition.

Tsugaru Uchihamono are high-quality blades with exceptional sharpness, durability, and flexibility, handcrafted by experienced craftsmen. Over time, their form and function have evolved in response to changing societal needs. During the eras when samurai culture and agriculture flourished, the blacksmiths produced swords, agricultural tools, and firearms. In more recent years, their skills have been applied to crafting kitchen knives and farming tools. Today, the same techniques are even being utilized in the steel construction industry.