This video explains the Machete field sharpening. This sharpening method is very easy for sharpening the knives and blades. The man in the video is explaining a sharpening method using a new machine which uses microwave for sharpening thick and hard knives. By using a dynogram and adjusting the microwave the knife can be sharpened. The process of sharpening is by just touching the dynogram through the flattened edge of the knife. This is a very easy process for sharpening the knife. He is also explaining the process by using another machete made by SAICO. This is a very useful video for machete field sharpening.