Ama no Hayekiri
Ama no Hayekiri, Orochi no Karasabi and Orochi no Aramasa are the names of swords used by Susano-o to kill the Dragon Yamata no Orochi. The name changes as within the Nihongi there are several alternative versions of the same tale.
No additionaly details are given for the the sword Ama no Hayekiri, however details are given for the other two.
1. Aston. W.G. (1896) “Nihongi Volume 1: Chronicles of Japan from the Earliest Times to AD697”. Tuttle Publishing.
Check out Japan Archives, our Japanese History Podcast