This paper deals with drilling of Carbon-Carbon composite material and presents the influence of process parameters like Tool point angle,spindle speedand feed rate on the Performance characteristics like Thrust force and Torque of Carbon-carbon composite material by using HSS and TiN coated carbide drill bits. A plan of experiments based on Taguchi's technique has been used to acquire the data. An L<inf>27</inf> Orthogonal array is employed to establish the optimal cutting parameters for the desired performance parameters. The drilling experiments were conducted on a CNC Drilling Machine at Anna University campus, Chennai, India. A comparison of the drillingprocess performanceby using both HSS tool and TiN coated carbide tools was also done in this paper. © 2015 Elsevier B.V., All rights reserved.