Please note that this is the Narutopedia's article on the chokutō wielded by Sasuke Uchiha. If you are looking for the article on the sword wielded by Orochimaru then you should head to Sword of Kusanagi.

Sword of Kusanagi
Name
Kanji	草薙の剣
Rōmaji	Kusanagi no Tsurugi
Literal English	Grass Cutting Sword
English TV	Snake Sword
Debut
Manga	Chapter #306
Anime	Naruto Shippūden Episode #51
Movie	Naruto Shippūden 2: Bonds
Game	Naruto Shippūden: Ultimate Ninja 5
OVA	Naruto x UT
Appears in	Anime, Manga, Game and Movie
Data
Wielder Sasuke Uchiha

Sasuke Uchiha claimed that the chokutō he wields is a Sword of Kusanagi; it has a blue scabbard and matching handle (these are both black in the manga), and is a larger size than a normal chokutō. Despite this, it has none of the natural specialities as the one Orochimaru wields, such as the extension of the blade and the ability to cut through almost anything, both of which are natural attributes of the Kusanagi.

To compensate for this, Sasuke can channel his lightning chakra into the blade with chakra flow, which will increase its sharpness greatly through high frequency vibrations, as well as increasing its cutting range. This would allow Sasuke to cut through almost anything, as well as numb the target who has been pierced by this lightning blade. During the Fourth Shinobi World War, a reincarnated Itachi Uchiha while cooperating with his brother temporarily wielded the blade to combat Kabuto Yakushi.it is said to be unblockable

Influence

The Kusanagi no Tsurugi (草薙劍; Literally meaning "Grass Cutter Sword") is one of the Three Imperial Regalia of Japan (三種の神器, Sanshu no Jingi), together with the Yata no Kagami (八咫鏡; Literally meaning "Eight Span Mirror") and the Yasakani no Magatama (八尺瓊曲玉; Literally meaning "Eight Shaku Curved Jewel").