Knife of the shirt

It is necessary to tighten and direct (bring) only one side of the knife — the side with the descent, and leave the second side with the absolutely flat knife of the shirt tightly with two hands. The movement and distribution of the fingers, as well as the muscle fixation of the wrists, help maintain the desired angle (about 35 degrees) move the knife along the diamond sharpener or sharpener with oil wetting with clear movements forward and backward.