This library is provided without any guarantee
The standard library is with the Nobel MU or a compatible screw
The "long"version is designed to work with the DESS 19.018 screw
The MU-RP Dan Rose is for the screw of Dan Rosen

2021-02-18 the MU-RP-DanRosen-Direct was replaced with a new geometry 
which is better fitting on a standard MU-RP like the one from DESS.
It is wider at the bottom

Imetric4D