Surface Roughness is an important aspect in mechanical engineering design depending on the application of the component in usage. Friction, wear and power transmission depend on material surface and contact environment. Objective Consideration may be with respect to aesthetic view, stress condition, precision fits, smooth motion etc. However, the critical constraints are surface roughness, tolerances and nominal size for the selection criteria of the parts. Since Taguchi method systematically reveals the complex cause and evolves the relationship between design parameters along with taking consideration of performance. Many researchers have used Taguchi techniques for design of experimental studies. The present study focusses on the investigations made on drilling using Taguchi Techniques.