The nagamaki was primarily used by samurai warriors in feudal Japan. It was a weapon of the samurai class and was associated with the noble and warrior elite. The nagamaki's design and use were influenced by the evolving battlefield tactics and warfare during the medieval period in Japan.

The nagamaki was particularly favored by mounted samurai, as its longer reach and cutting ability made it effective for striking at enemies from horseback. The weapon's combination of a long handle and a curved blade provided versatility in both slashing and thrusting attacks.

While the nagamaki was not as commonly used as other polearms like the yari (spear) or naginata (polearm with a curved blade), it held a respected place among samurai weaponry. Its unique design and the skill required to wield it effectively made it a symbol of status and martial prowess.

It's important to note that the usage of weapons like the nagamaki varied depending on the specific time period, region, and individual preference. The availability and adoption of certain weapons could differ among samurai clans and martial traditions.