The 142SN series of ratcheting combination spanners from Beta Tools can get you out of the tightest jam!
One end is open with a 15° angle from the handle. The other end has a one way ratcheting 12-point box end with a swivel joint. Both ends fit the same size metric (mm) fastener. The joint lets the handle point anywhere from 90 to 0 degrees to the axis of the fastener in either direction. You can even reach a nut on a long stud inside a narrow tube. The brightly polished finish looks great and cleans up easily.