Cutting fluid is a specialized liquid used in machining processes to improve the efficiency and quality of cutting operations. It serves multiple purposes, including cooling the cutting tool and workpiece, reducing friction, and flushing away chips and debris. This helps to prolong the life of the cutting tool and achieve better surface finishes on the material being worked on. There are various types of cutting fluids, including water-based emulsions, oil-based fluids, and synthetic fluids. The choice of cutting fluid depends on factors such as the material being machined, the type of cutting operation, and environmental considerations. Proper application of cutting fluid can significantly enhance productivity and reduce wear on tools.