The socket wrench is composed of a set of plum tubes of different sizes, which are continuously rotated by the bow-shaped handle when in use, and the work efficiency is high. When the size of the screw or nut is large or the working position of the wrench is very narrow, a ratchet wrench can be used. The swing angle of this kind of wrench is very small, which can tighten and loosen screws or nuts. Turn the handle clockwise when tightening. A support rod is installed on the square sleeve. When the handle is pulled back in the opposite direction, the strut slides out in the inclined surface of the ratchet teeth, so the screw or nut will not follow the reverse rotation. If you need to loosen the screw or nut, just flip the ratchet wrench and turn it counterclockwise.
