A torque screwdriver in a toolbox is a must as it is used for precisely and uniformly turning screw head fasteners to the desired tension. The turning strength measurement for twisting an object is torque. This is a manual torque screwdriver with a handle same as a traditional screwdriver. Additionally, it has an in-line drive shaft. It is an essential tool whether you are undertaking a small or large building project. This tool ensures a constant torque output.