Ergonomic handle: The handle is ergonomically designed to save effort and not tire hands, giving you a better using experience. When you hear a click during use, it means the preset Nm value has been reached, please do not continue to use force.A complete set of accessories: Accessories are the most commonly used bits and have a wide range of applications. Storage Box: Comes with a storage box to store these accessories neatly in the box and will not cause confusion or loss.The front and rear double laser scale design allows you to read the number clearly, giving you a better experience.Quick Release Button: It's easy to install or remove sockets by pressing a quick release button. Wide applications: This tool set can be widely used for electrical engineering, automobile repair, product assembly, etc. There are three different models for you to choose: SHGH-20S, SHHX-20S, SHTX-20S. The handle of the SHHX-20S is made entirely of black aluminum alloy, and the difference between the SHGH-20S and SHTX-20S is the shape of the key.