“THE FORCES GENERATED WHEN DRILLING BITS ARE APPLIED VERTICALLY AND OBLIQUELY: ANALYTICAL ANALYSIS AND INFLUENCE ON NORMAL OPERATION AT ANGLES OF 15° AND 30° INCLINATION” (2026) Eureka Journal of Geoscience, Materials & Resource Engineering, 2(4), pp. 74–89. Available at: https://eurekaoa.com/index.php/9/article/view/918 (Accessed: 19 May 2026).