Kerambit Techniques by the Grand Master Tony Montana. Practically indefensible, the Indonesian Kerambit is a tremendously effective and lethal weapon, which gives us a different point of view in the use of bladed weapons. Its double edge and its retention ring will allow us to discover the infinite possibilities that make it the tactical knife par excellence. However, and to understand its management, we will need a method that allows us to understand the essence of the weapon. This is the objective of this instructional. During the learning we will discover the infinite combinations, depending on our perception and martial base, to incorporate them into our training with an empty hand and develop our own techniques. The different grip modes, variations, applications, angles of attack and exercises to gain fluency and dexterity in handling are shown in this work.