I am having terrible luck on finding any information for it :/if you look in machinery's handbook they have info on how to drill different steps. I think there is a calculation.. I remember seeing something about it long ago when looking for info on tapered pins.
I think if you make a holder with MT2 tapers and you put your drills in those holes you will regret it and go back to the drawing board. The Morse taper is designed to hold and hold tight. All your drills will get stuck in your drill block.It will be in plastic. I am making a drill block for my newly acquired MT2 drills