Punong Guro Edgar Sulite founded the system LAMECO Eskrima Based on the knowledge that submitted the Great Masters with whom he studied in the Philippines. A system that specializes in 3 distances fighter and combinations thereof, and based on opportunity: the perception and reaction. In this first paper, Guro Dave Gould, one of the greatest exponents of the system and finally an instructor certified by Sulite, presents us with one of its specialties: the knife. In "Essential Knife", the exercises will discover that you allow your environment to remain vigilant and respond using your weapon in unexpected situations.