Kodachi

Kodachi (小太刀, こだち)
Kodachi (小太刀, こだち)
	Kodachi "Hachiya Nagamitsu" 13th century, Tokyo National Museum
Type	Small sword
Place of origin	Japan
Service history
Used by	Samurai, Onna-musha
Production history
Produced	Kamakura period (1185–1333) to present.
Specifications
Mass	280 g (9.9 oz) and more
Length	85 cm (33 in)
Blade length	40 to 60 cm (16 to 24 in) (shorter than 2 shaku)
Blade type	Curved, single-edged
Hilt type	Metal, wood, ray skin (same), silk, cotton
Scabbard/sheath	Lacquered wood

A kodachi (小太刀, こだち), literally translating into "small or short tachi (sword)", is one of the traditionally made Japanese swords (nihontō) used by the samurai class of feudal Japan. Kodachi are from the early Kamakura period (1185–1333) and are in the shape of a tachi. Kodachi are mounted in tachi style, but with a length of less than 60 cm (24 in).^[1] They are often confused with wakizashi, due to their length and handling techniques. However, their construction is what sets the two apart, as kodachi are a set length while wakizashi are forged to complement the wielder's height or the length of their katana.^[2] As a result, the kodachi was too short to be called a sword properly but was also too long to be considered a dagger, thus it is widely considered a primary short sword, unlike the tantō or the wakizashi which would act as a secondary weapon that was used alongside a longer bladed sword.

The exact use of the kodachi is unknown; it may have been a companion sword to normal sized tachi or it may have been a sword for an adolescent. Kodachi appear to have been produced only in a certain time period by specific schools of swordmakers.^[1]