suharjo, a, ayu pratiwi, & Taufik Indrianto. (2026). Optimization of the 18 mm Hole Drilling Process for HMS 6020 Excavator Bracket Cover Through Tool Redesign Using Cp/Cpk Analysis. Jurnal Teknik Mesin (Journal Of Mechanical Engineering), 15(02). https://doi.org/10.22441/jtm.v15i02.39121