Kōsetsu

The Kōsetsu ( 降雪; Literally meaning Snowfall) is a double bladed sword utilized by Sanger Kazan. The blades of the sword are pure white in color with a scale-like pattern on the entire length of the blades. The handle has black wrappings and can be disconected at the middle so that two swords can be used by the wielder.

The blades have been imbued with ice, giving them the ability to freeze whatever they cut and increasing the sword's durability, but it is also dangerous for the user to touch the blades with their bare hands for the same reason. Due to this cold vapor is being constantly emmited from the blades. These swords can also be imbued with regular chakra to increase their range and cutting power.

These swords have been shown to be strong enough to cut through several thick trees with ease when infused with chakra.

Trivia

 * Sanger got this weapon from a master weapon smith in Kirigakure who wanted him to test it out.
 * Sanger didn't begin using Kōsetsu until his old double-bladed sword was broken when fighting the Ten-tails.