The hook wrench is manufactured according to JBZQ4624-2006, made of 45 steel, and has a one-time stamping process with a black sprayed surface.

Hook wrench, also known as hook wrench, hook wrench, crescent wrench, crescent wrench, hook wrench, hook wrench, hook wrench, hook wrench, hook wrench, crescent hook wrench, hook wrench, crescent hook wrench, hook wrench, hook wrench, hook wrench, hook wrench, hook wrench, moon wrench, crescent blackboard wrench, moon wrench, hook wrench, hook wrench, hook wrench, hook wrench, hook wrench, hook wrench, round nut wrench, and cap wrench, etc.

Hook type wrenches are specifically designed for disassembling and assembling round nuts on vehicles and mechanical equipment, as well as for turning flat nuts with limited thickness.

Hook wrench slots are divided into rectangular slots and circular slots.

Hook wrenches should be selected according to actual needs during use, and should not be treated as steel tools. The hardness of the workpiece itself should be measured first. If the hardness is close to the tool hardness, careful operation should be carried out. If it is higher than the tool hardness, it should be prohibited from use.

When using a hook wrench to tighten or loosen nuts, do not use a hammer to strike the end of the wrench. This will cause the inner hook of the wrench head to break, which is considered abnormal use.