Geletii, P.P. and Femiak, Y.M. 2026. Investigation of the influence of PDC bit blade geometry on the rock cut-ting efficiency in hard abrasive formations . PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY. Number. 22(83) (Apr. 2026), 158–176. DOI:https://doi.org/10.31471/2304-7399-2026-22(83)-158-176.