1. High Accuracy: Accuracy is the most crucial characteristic of precision parts processing. The parts have very tight tolerance requirements, where even a single micrometer can make a difference. As such, precision parts processing requires high precision and accuracy in every stage of production, from design to manufacturing.

2. High Consistency: Precision parts processing demands the production of identical parts that will have the same level of accuracy and quality. Consistency ensures that the parts will work as intended and meet the requirements of the application. Precision parts can only achieve consistency through rigorous quality control and testing procedures.

3. Complex Design: Precision parts processing often involves the creation of complex 3D designs that require advanced CAD/CAM software and sophisticated machining tools. The complex designs make it possible to achieve intricate shapes, sharp angles, and precise dimensions, which are critical for the functionality of the part.

4. Materials and Surface Finish: Precision parts processing employs various materials to produce different parts. These materials range from common metals like steel, copper, and aluminum to high-strength alloys like titanium and Inconel. Precision parts processing requires precise surface finishes, such as polishing or coating, to enhance the part's performance and longevity.

5. Quality Control and Testing: Precision parts processing involves rigorous quality control and testing procedures to ensure that the parts conform to the requirements of the application. The testing procedures often include non-destructive testing, leak testing, and dimensional inspection.