Metalworking Fluids and Coolants segmentation by application delineates the functional contexts in which the fluids are deployed, directly shaping market revenue streams. Machining—including turning, milling, drilling, and tapping—remains the dominant application, accounting for roughly 45 % of total sales due to its extensive use across automotive, aerospace, and general manufacturing. Forming processes such as stamping, forging, and extrusion represent the second‑largest block, contributing about 25 % as they demand high‑performance lubricants to control friction and temperature. Grinding operations, encompassing surface and cylindrical grinding, capture near 15 % of the market because of the precision‑critical nature of the work and the need for fine‑particle emulsions. Cutting applications, which cover saws, shears, and water‑jet cutting, hold roughly 10 % of demand, driven by the growth of sheet‑metal fabrication. The residual 5 % comprises niche uses—electro‑discharge machining, additive manufacturing post‑processing, and specialty tooling—where customized fluid chemistries are required. This application‑based taxonomy clarifies how each segment contributes to overall market size and informs allocation of R&D resources.