White Light Chakra Sabre

The White Light Chakra Sabre was a tantō that originally belonged to Sakumo, but then he passed it on to his son, Kakashi. Kakashi used it to fight Kakkō, and the blade was destroyed. The tantō gave off a white streak of chakra when it was swung, earning Sakumo his title of "Konoha's White Fang".