The chopping knife is locally called Dao; this is one of the key traditional tools of the Phom Naga Tribe, which is native to the Longleng district of Nagaland, in northeastern India. It is a multipurpose tool used in everyday life and is also a symbol of cultural identity and craftsmanship for the Phoms. The making of the Dao consists of two main components: a long flat blade and a wooden handle. The blade is characterized by a sharp, hard edge on one side and a relatively flat blunt edge on the other. This edge provides a hard spine for control and grip; therefore, it can chop wood, clear vegetation, and butcher meat.
The other distinguishing feature of the Phom Dao lies in the artistry of its handle decoration. The wooden handle is ornamented with orchid skin, cane strips that have been plaited, and twisted cordage, all of which are indigenous materials from the local environment. These decorations also serve to enhance the beauty of the knife and to provide a better grip during handling. The Dao's meanings go beyond its materialistic utility, also having ceremonial and symbolic significance. It finds a place in the hands of men during festivals, rituals, and dances to signal strength, readiness, and a continuity of centuries-old practice. The Dao is still a cherished possession of the Phom people for cultural functions and events, notwithstanding the advent of modern technological tools.