By tightening the screw on it, the post can be compressed and kept at the desired height on the post holder.
The post collar OMKB2, 12.7 mm post and post are designed to maintain the specified height and rotational orientation of the holder in an orderly manner. Its cover consists of two parts: an 11.9 mm thick engraved post holder cover and a thinner, 5.7 mm thick post cap. The combination of a steel ball and compatible V-groove ensures an angle repeatability of ≤0.5°. Each component to be replaced must be equipped with post collarat the desired height. For best results, the post collar should be positioned so that the screw angle is opposite the spring-assisted thumb nut. This ensures that the two-line contacts between the post holder and the matching post are maintained during adjustment.