Machining parts such as steering knuckles cause significant difficulties due to insufficient tool availability with classical locating charts. Therefore, a previously developed and statically tested fixture with incomplete locating was investigated in this work during the machining of steering knuckles and the measurement of accuracy indicators after machining. This work aimed to conduct experimental studies of the accuracy of the dimensions of the surfaces of parts, such as steering knuckles, their relative location, and roughness after machining in fixtures with incomplete locating. The research methodology was based on the selection of cutting modes and tools according to catalogs for each of the transitions of the technological process of machining in the analyzed complex CNC operation, as well as on a visual study of the machining process and measuring the actual values of the dimensions of the surfaces, the deviation of their mutual location among themselves and determining the roughness and comparing the above parameters with the requirements of the drawing. As a result of the research, it was found that vibrations and other extraneous factors indicating instability of the cutting process were not detected during machining with cutting modes specified in the catalogs of cutting tool manufacturers. Also, using a high-precision coordinate measuring machine, an analysis was carried out of the dimensional accuracy of cylindrical and flat surfaces on a batch of workpieces, as well as the center-to-center distances and critical linear dimensions of the part, which are characterized by high accuracy. The deviation of the diametrical dimensions of the machined surfaces was no more than 0.024 mm, and the deviation of the center-to-center distances was no more than 0.151 mm, which is within the permissible limits according to the drawing. The deviations of dimensions from the nominal value (with a maximum value of 0.122 mm, which is acceptable) were compared with the values of displacements of the corresponding surfaces during a static experiment, which were obtained in previous studies. A comparative analysis of the maximum deviations of surfaces from parallelism (0.025 mm) and perpendicularity (0.01 mm) with the permissible values specified in the drawing showed that they do not exceed the latter. Using a profilograph-profilometer, the roughness values of the machined surfaces were measured, and their profilograms were obtained. The roughness parameters were within the permissible limits and did not exceed the values Ra 2.37 μm on the corresponding surfaces according to the drawing.