Kitchen Sink Strainer Wrench

I made this wrench to install a strainer in a kitchen sink.  This is the strainer I had Glacier Bay Spin Lock Kitchen Sink Strainer - Stainless steel with polished finish 7043-105SS - The Home Depot.  It may fit other brands and models.  The smaller part has cogs that fit into the strainer, and the larger ring is used to tighten the outer threaded mounting nut.  The smaller part threads onto the handle of the larger part so you can store them together and they don't get lost.