For a 5.5 amp drill, this unit offers lots of power.  The build quality is nothing short of what we expect from Milwaukee.  Everything from the professional grade 1/2" chuck to the heavy duty detachable cord shows Milwaukee's committment to reliability and longevity.  I ordered this through Amazon and received the 75th Anniversary unit and it came with a steel case.  Wasn't expecting the additional amenities, but you get lucky sometimes, I guess.