Electric discharge machine(EDM) is used for manufacturing purpose. It is used to cut the hard materials in machining by the non-conventional process, to remove the material from work piece by the fusion, ablation and evaporation which caused by the heat energy developed through electric spark when the electric energy supplied on it. It has more advantages on the machining the products such as performance and characteristics. In the present study, to improvement the performance and characteristics like Micro hardness, Material removal rate(MRR), Surface finish and Residual stresses, The Additive gaseous and powder mixed near dry EDM is used. By using this method good surface quality of product is achieved. In this study, it is found that less surface roughness(SR 1.121 µm) when helium gas is combined with graphite powder as a dielectric medium  and more material removal rate(3.489mg/min) is obtained by the combining of nitrogen gas with graphite powder as a dielectric medium. And also found the minimum residual stress(RS) is229MPa and largest micro hardness(MH) is 821.32(VHN) which obtained when helium gas is combined with zinc powder as a dielectric medium.