OB41 Cut Tap Drill Fluid contains a special blend of extreme pressure and lubricity additives in a mixture of fine highly refined mineral hydrocarbons providing a high degree of finish quality. It is primarily intended for use on cast iron and all steels including high tensile where the fluid is applied directly to the work piece and tap. Ideal in Reaming, Tapping and Drilling applications where a thin, fast flowing lubricant is required for improved penetration and heat dissipation. Its specialist formulation providing a very low viscosity product offering excellent penetrative qualities. It has excellent penetrative qualities and so is suitable for fine thread work in ferrous metals and high tensile steels.