Here's a concealed shower valve flow control handle...
Manufactured badly! The screw in handle doesn't have enough protruding thread to make contact with the valve spindle....
I've established it's an M5 thread, but how would I remove the excess material so a thread cutter would cut the thread longer?
Manufactured badly! The screw in handle doesn't have enough protruding thread to make contact with the valve spindle....
I've established it's an M5 thread, but how would I remove the excess material so a thread cutter would cut the thread longer?

