In the present work, the comparison study for surface roughness and main cutting force is studded between Dry, Wet lubricant and Solid lubricant condition during the turning the AISI 4340 steel, hardness 60 HRC with CBN insert. The water-based lubricant used as a wet lubricant and boric acid in powder form is used as a solid lubricant. The objective of this study is to know about optimum machining parameters and best conditions with dry or solid lubricants for hard turning operation and it is also important to find the research gap through different studies. The results indicated that there is a significant effect on surface roughness (Ra) and main cutting force (Fc) when cutting under different conditions (Dry, Wet and Solid condition) with different cutting parameters. It has been found that with solid lubricants surface roughness value decreased as compare to dry hard turning. The proper selection of lubricants in the solid state along with cutting conditions and tool angles is essential for achieving the overall improvement in hard turning process. With the use of lubricants in the solid form hard turning may become a viable alternative to dry and wet hard turning process.