English 
Chinese 
This product can achieve fast angle adjustment and fine adjustment with flexible hand wheel as well.Optical parts with diameter of 2 inch or 50mm or other adjusting mounts can be directly fixed to the M52×1 threaded hole in the center with threaded clamping rings.360° score at rotary stage ends,visual angle measurement.Precision shafting design ensures stable and easy to operate.Both horizontal and vertical p[erations are available.Locking hand wheel ensures safe and reliable.
