I was actually wrong with thinking CSS is in mm, it is actually cm. If you want 200m/min you have to enter 20,000.
Also RPM seems to be wrong in CSS, for example
200m/min 66mm dia and Mach has 1157rpm, should be 965rpm
200m/min 62mm dia and Mach has 1232rpm should be 1027mm
Don't know if CSS is correct in Imperial units, anyone tried it?
Hood