Het techs. I am trying to adjust grind size on a mythos grinder. there is a small nut at the base of the adjustment knob that appears must be loostened in order to adjust (turn) the knob. what is the recommended tool needed to adjust this nut, I do not want to guess and then strip it. is anyone familiar with the grind adjustment on this grinder. If so can you lend a little guidance here.

As always, thanks alot.

Nick