The Kabutowari, whose name means 'helmet breaker', is a Japanese weapon specialized in breaking the opponent's armor. It consists of two distinct ends: one is hammer-like with a pointed head for piercing armor, while the other end is ax-shaped for cutting armor. Designed to be effective against the heavy protection of samurai, the Kabutowari was used in close combat to disarm or incapacitate the opponent by weakening his armor. This weapon proved crucial in engagements where armor offered a significant defensive advantage.