Hario Skerton (Rounded Handle Post) Drill or Electric Screwdriver Adapter

This is an adapter to let you use a drill or electric screwdriver to grind coffee in a Hario Skerton manual ceramic burr grinder.

Important: Keep the speed of the drill/screwdriver pretty low or you risk damaging your grinder!

Similar to http://www.thingiverse.com/thing:189452, but that one is for grinders with pentagonal handle posts, whereas this one is for the rounded-rectangle style posts.