Industry 4.0 is often spoken about. It is nothing but the digital transformation of manufacturing, production, and assembly lines. However, the question remains what electric assembly tools can allow assembly lines and plants to switch to automation and become smart? With majority of the assembly lines relying on pneumatic and manual wrenches, the question also remains that what type of tools can replace them? In this article, we will answer these questions and talk about the benefits of making the switch to Industry 4 revolution.