Katanas have a reputation for being able to cut through various materials, including bone. However, it's important to understand that the ability of a katana to cut through bone depends on several factors, such as the quality of the blade, the technique used, and the specific type of bone.

A well-made and properly maintained katana can be extremely sharp and capable of delivering powerful cuts. The sharpness and design of the katana's blade, known as the edge geometry, contribute to its cutting ability. With a precise and well-executed technique, a katana can potentially cut through bone, especially if the bone is relatively thin or if there is sufficient force applied.

However, it's worth noting that cutting through bone is not the primary purpose of a katana. Traditionally, katanas were designed for effective cutting on soft or unarmored targets, such as flesh or tatami mats. While a katana can potentially cut through bone, it is not designed specifically as a bone-cutting tool.

It's also important to exercise caution and prioritize safety. Attempting to cut through bone or any hard material with a sword can be dangerous, as it may cause damage to the blade, result in improper technique, or risk injury. Proper training, experience, and an understanding of the sword's limitations are essential when using a katana or any bladed weapon.