No Slip Optical Post Holder, 76.2 mm, 12.7 mm Diameter Posts, M6

The M-VPH-3 Standard Optical Post Holder has a 76.2 mm height, and a spring-loaded brake shoe design which applies a constant force to 12.7 mm diameter optical posts even when the thumbscrew is loosened. This allows the orientation of an optical mount to be easily adjusted with one hand. This post holder is designed for standard posts, and has an M6 threaded hole in it's base.