This paper investigates the effect of various cutting fluid in the cutting and machining operation. Cutting action could be improved by the use of solids, liquids, emulsions or gases in the machining process. In all cutting and forming operations high temperatures are developed due to friction and unless the temperatures and pressures are controlled, the surfaces in contact may adhere to each other. In the present work, study has been done to see the effect of three cutting fluids during turning of mild steel (AISI1008).