Our double open end wrenches are made of CR-V steel, which has high hardness and excellent wear resistance. The surface is nickel-plated to resist corrosion and rust, keep its surface smooth and reduce wear, not easy to deform, and can be used for a long time. 15-degree opening angle for enhanced accessibility in tight spaces. Its innovative design allows for efficient engagement with fasteners, ensuring optimal performance in tight environments. The handle is comfortable to hold, and the clear, easy-to-read specifications engraved on the wrench make it quick and easy to select the right wrench size for different bolt sizes. Mainly used to tighten or loosen nuts and bolts with flat sides, especially when a socket wrench or adjustable wrench cannot reach them due to space constraints. It is widely used in automotive repair, plumbing, furniture assembly and repair, mechanical repair, construction and DIY projects. Please use a caliper to measure the opposite sides of the screw and nut before purchasing, and then choose the corresponding open-end wrench. Always use the correct size wrench to avoid rounding the bolt head or damaging the wrench.