Cutting fluids are essential in metal machining to improve tool life, reduce thermal deformation of the workpiece, enhance surface finish, and flush chips from the cutting zone. However, these fluids can degrade over time due to bacterial growth and contamination with tramp oil. Testing is not just important, it’s necessary!

Lathe operators face health risks from both fluid contact, which can cause dermatitis, and breathing in the mist or vapor, which can lead to asthma, extrinsic allergic alveolitis, and other respiratory problems. Biocidal additives can extend the life of the fluid and reduce health hazards.