What are the types of wrenches?

　　What are the types of wrenches?

A wrench is a commonly used mechanical tool, mainly used to tighten screws and fasteners. There are many types of wrenches, including the following:

Ratchet wrench: Also known as a quick wrench, it is suitable for situations where the screws or nuts are large or the working position is narrow. It can tighten and loosen the screws or nuts with a small swing angle. 1

Dead wrench: Also known as dead wrench, it is a non-adjustable wrench. It is divided into double-head dead wrench and single-head dead wrench. It is mainly used for mechanical maintenance, automobile repair, etc.

Torx wrench: Both ends are in the shape of plum blossoms, and the inner hole is designed by two regular hexagons that are concentrically offset from each other by 30 degrees. It is suitable for narrow situations and has high strength.

Combination wrench: One end is an open-end wrench, and the other end is a torx wrench.

Adjustable wrench: The opening width can be adjusted, suitable for irregular bolts or nuts, but it is inconvenient to operate and can easily slide away from the bolt.

Hook wrench: Also known as crescent wrench, it is often used to twist flat nuts with limited thickness.

Socket wrench: suitable for bolts and nuts in narrow spaces or deep recesses. It consists of multiple sockets with hexagonal holes or twelve-sided holes, and is equipped with handles, extension rods and other accessories.

Hexagonal wrench: Also known as Allen wrench, it is specially used to twist hexagonal screws. It is mainly used to tighten round nuts on loose and loose machine tools and vehicle machinery and equipment.

Torque wrench: Also called a torque wrench, it can display the applied torque or send a signal when the torque reaches a specified value. It is used to assemble bolts and nuts with a specified torque value.

In addition, there are open-end wrenches, straight handle wrenches, cross wrenches, pipe wrenches and other types.