Maulidika Aditya Junianto, Sudarno, Muhammad Hasan Basri and Doni Dwi Susilo 2026. The Effect of Tool Type and Vertical Milling Machine Feeding Depth on ST 42 Steel Surface Roughness. Jurnal E-Komtek. 10, 1 (Jun. 2026), 113-124. DOI:https://doi.org/10.37339/e-komtek.v10i1.3289.