InuYasha Episode 34: Tetsusaiga and Tenseiga
Episode 34 of 167 of InuYasha, aired July 9, 2001, 24 minutes. Available with English subtitles and dub where released.
Episode summary
Inuyasha and the others are introduced to Totosai, the swordsmith who forged Inuyasha's Tetsusaiga and Sesshomaru's healing sword, Tenseiga.