Ceramic materials are increasingly being used in medical, automotive, military, nuclear, and other areas as demand grows for materials with characteristics such as high hardness, high-temperature resistance, and high wear resistance. One of the most significant issues with ceramic materials is their production. Ceramics are difficult to manufacture due to their brittleness and high hardness. However, research is going on the ductile regime machining (DRM) approach, which allows the machining of ceramics without inflicting any surface or subsurface damage. The goal of this work is to machine zirconia ceramics in a ductile regime. Zirconia, like other ceramics, is a brittle and stiff material with limited slip allowance for plastic deformation and poor fracture toughness, making it difficult to fabricate. Developing strategies for DRM of zirconia ceramics leads to a wide range of uses. Because of its rising use as an advanced ceramic material, yttria-stabilized tetragonal zirconia polycrystal (YTZP) has been used as the workpiece material in this work. The deformation process affects material removal in brittle materials. Depth of cut, normal load, cutting speed, surface temperature, and traction load are the parameters that have been studied throughout this experiment. The purpose of this work is to find out the ductile–brittle transition depth and to optimize machining parameters to maximize the critical depth of cut to increase the material removal rate without propagating any microcracks.