The LEAN methodology primarily serves to eliminate waste in all activities. This business philosophy enables companies to operate efficiently and flexibly. The application of LEAN methodology in companies and factories has become more common in recent years. The elements of LEAN strategy, 5S and POKA YOKE are of particular importance for companies. The implementation of 5S tools achieves significant effects, such as increasing safety, productivity, quality and reliability of production machines. On the other hand, the POKA YOKE tool is extremely important for the company because it will avoid mistakes and at the same time save time and reduce the costs of the production cycle. The application of these tools will greatly contribute to the increase of competitive advantage, and therefore to the increase of profit, which is the main goal of the business of every company.