Honing and lapping oils with excellent filtration and rinsing characteristics for optimum surface quality with high cutting loads. Suitable with diamond, corundum, CBN, and other honing tools for working with steel, cast (malleable iron), non-ferrous and light metals as well as chrome-plated surfaces. As well as the viscosity, the product range is formulated with respect to reduction of honing debris, ageing-resistance and prevention of oil mist production. The oils are available with sulphur deactivators and cobalt inhibitors.