This is a precision CNC machined metal shaft detail, commonly used in mechanical transmission assemblies and industrial machines. Material: alloy steel/stainless steel, turning - milling - polishing surface. Structure: multi-step shaft, block-shaped middle body, with radial holes and machining plane for assembly. Technology: CNC turning, milling, drilling, small error (±0.01–0.02mm). Application: transmission shaft, precision mechanical assembly, robot, automatic line. Advantages: high precision, durable, good load capacity, machining according to required drawings.