I want to connect a drill chuck with 1/2"x20 UNF female thread to an angle grinder with a M14x2 male thread. How to?
Safety Warning: Do not use a drill chuck at higher speeds than it is designed for. Specifically, it is not designed for the 10-12000 rpm of a typical angle grinder. Using it in this way may result in serious injuries.
(This question is still meaningful because there are angle grinders with speed control, and running them on slow rpms will be ok with a drill chuck. Or, for that matter, the required adapter will also help building a DIY angle drive from a dead angle grinder, which is then used with a normal power drill.)