Aichouni, A.B.E., Abdullah, H. and Ramlie, F. 2021. A Scientific Approach of using the DMAIC Methodology to Investigate the Effect of Cutting Tool Life on Product Quality and Process Economics: A Case Study of a Saudi Manufacturing Plant. Engineering, Technology & Applied Science Research. 11, 1 (Feb. 2021), 6799–6805. DOI:https://doi.org/10.48084/etasr.4008.