Velocity if rotate around TCP

Hello,
if I want to rotate around the TCP, there is no velocity in mm/s or so on since the tool rotetes but stands still. This is the case if I want th give the tool a new orientation.
So, there should be a G-Code to set pure rotation velocities. I could not find something like this, since in general the tool tip ist displaced too, when I command a movement.
And, I think the rotation velocity should be the same if there a rotation is commanded around a point that is extremely near to the TCP. This seems to be self-evident (?).
Thanks in advance

In some controllers you can switch between two feed definition : check G93 / G94

basically if you turn around tcp you can activate G93 and declare a Feed F, the move will take 1/F seconds (or minutes) to complete.