drive coupling on blender shattered

The drive coupling on my Kitchen Aid Blender shattered into dozens of pieces. Found this website and realized I could buy a new one. Could not remove coupling base with "official" instructions. However, user comments on how they removed coupling base very helpfull. Put thin blade screw driver thru hole on bottom of blender base, held the blade from turning and twisted the coupling base off. Very easy and quick. New one when on just as easily.