In this video, I am transforming a rusty drill bit into a butterfly knife, also known as a balisong, which is a type of folding pocketknife from the Philippines. The project involves forging the bit ...

The balisong, also known as the butterfly knife, traces its origins to Taal, Batangas. The name is derived from the word “bali,” meaning broken, and “song,” from the word “sungay ...