kissaki

Kissaki is the tip of a Japanese sword blade, such as a katana, wakizashi, or tanto. The term comes from the Japanese 切先, meaning “cutting tip.” The kissaki marks the transition from the blade’s flat surface to the sharply pointed end and plays a key role in both thrusting and cutting performance.

Traditionally, kissaki are classified by size: ko-kissaki (small), chu-kissaki (medium), and ō-kissaki or dai-kissaki (large). The exact proportions vary by school and era, but these terms indicate how pronounced the tip taper is. A chu-kissaki is a common compromise between strength and point geometry on many blades.

The kissaki is formed during forging and the finishing process, in harmony with the blade’s temper pattern. The hamon line often continues into the kissaki, and the tip’s shape is reinforced to maintain durability for piercing and thrusting. The geometry of the kissaki interacts with the blade’s overall balance and cutting feel.

In modern contexts, the kissaki remains a defining feature of Japanese swords and is a key consideration in appraisal, restoration, and reproduction. Its shape can indicate school, period, and intended use, though individual blades vary widely.