Metalworking fluids, also known as cutting fluids or coolants, play a crucial role in various machining and metalworking processes. These fluids are specially designed liquids or gases applied during machining, grinding, milling, and other processes to enhance the efficiency, tool life, and surface finish of metal components. Metalworking fluids serve several key functions, including cooling the workpiece and cutting tool to prevent overheating, lubricating the cutting tool to reduce friction and wear, and flushing away metal chips and debris. These fluids come in various forms, such as oils, emulsions, synthetics, and semi-synthetics, each tailored to specific machining applications. The choice of metalworking fluid depends on factors like the type of metal being machined, the machining process, and environmental considerations. Metalworking fluids not only improve machining performance but also contribute to extending tool life, minimizing tool breakage, and enhancing overall machining precision. However, proper handling, disposal, and adherence to safety guidelines are essential to mitigate health and environmental risks associated with the use of these fluids.