1、 Technical Principle This product is an improved adjustable wrench, which is composed of a fixed wrench body, an adjustable wrench body, a worm, etc. It is suitable for fast * * wrenching of any screw. 2、 Product features 1. The opening of the wrench mouth is wide, and you can quickly insert screws from any direction to tighten the stack of wires. 2. It has a wide range of applications, integrating the advantages of solid wrench, adjustable wrench and ratchet wrench.