These wrench holders are designed to be used with the Packout Low-Profile Compact Organizer (part # 48-22-8436 or 48-22-8431) to hold a single set of either Metric or SAE wrenches

They are designed specifically around the Milwaukee wrench sets, but work great with other brands too! The holder can fit Metric wrenches up about to 22mm and SAE wrenches up to about 7/8" (this means the SAE Milwaukee wrench set won't fit the 15/16")