Wrench for huge hex bolt under a toilet tank

prusaprinters

Most toilets in the US hold the drain hardware to the porcelain tank with a very large (86 mm diameter) hex nut mounted below the tank. Most wrenches and channel locks are not big enough to loosen it. Instead of paying like $30 for a giant set of channel locks for this rare job, print this wrench. Typically the nut only needs loosening a fraction of a turn before it comes easily by hand the rest of the way.