Originally Posted by mopetista
now would you believe it most people find out (by accident or otherwise) how to get a plastic rotor with a 2mm to fit a threaded 3mm shaft - by enlarging the hole :-)
joking aside, I think the question was rather how to fit the 6-blade rotor to a Turnigy 2610 motor which has a 3mm - non-threaded - shaft. That is the motor you state you are using, not the stocker. I guess it has been asked before but I don't remember the answer...
The turnigy 2610 motor comes with both 2.3mm and 3mm shafts. So I'm guessing he used the 2.3mm and that's why he had to ream out the hole to fit the shaft.