Jingdiao 5 axes high-speed precision machining centers have the abilities of 0.1µm movement, and 1µm cutting which makes it capable of cutting parts with mirror finishes. Combined with our on-machine measurement software, we are able to machine a consistent minimal amount of material before moving onto the next step which is critical for stable machining resulting in the mirror finish. Machining with CBN and PCD tools also contributes to the mirror finish. In this video, the workpiece material is STAVAX steel (HRC50), and the finish is Sa of less than 8nm. Often for lens molds, hand polishing is not an option so using a machine like the Jingdiao 5 axis high-speed mill for mirror finishing is the best solution.