KULBHUSHAN BHAGAT2, A. S. A STUDY OF THRUST FORCE IN DRILLING OF EN-8 STEEL USING FACTORIAL DESIGN. International Journal of Engineering Technology and Computer Research, [S. l.], v. 3, n. 5, 2015. Disponível em: https://ijetcr.org/index.php/ijetcr/article/view/254. Acesso em: 4 aug. 2026.