This high-precision manual rotating stage is made of aluminum alloy, which combines light weight and high rigidity, and is not easy to deform. Driven by a micrometer, the stage ensures adjustment accuracy; the 360° rotation function enables all-round observation of optical lenses, while the ±5° fine adjustment allows for precise positioning of the lens angle. In optical lens inspection work, this stage can assist inspectors in carefully checking parameters such as lens surface scratches and light transmittance, accurately capturing lens defects, providing reliable support for lens quality control, and thereby ensuring the imaging effect of optical equipment.