The main effect analysis is used to study the trend of the effects of each of the factors. Main effect plot described that the cutting speed and feed are inversely related to surface roughness as shown in Fig 2. Fig 3 shows that the increase in cutting speed leads to higher tool wear rate. Minimum surface roughness is achieved at higher cutting speeds particularly above 350m/min. whereas, the tool wear increases with cutting speed increase. Feed rate is the significant factor in controlling the surface roughness.