* For adjustment on drive belt, undoing the
   retaining belt, removal and replacement of
   fan hubs.
* Set includes:
- Mercedes fan clutch holding wrench holds
  the water pump pulley to allow release of
  fan.
- BMW fan clutch holding wrench holds the
  water pump pulley in place while loosening
  the radiator fan.
  for BMW M10, M20, M30 & other late model 
  vehicles (Holes at 38 mm & 44.5 mm)
- Mercedes fan clutch wrench removes the
  thermo-viscous radiator fans found on
  Mercedes and Ford vehicles. 
  For Mercedes engines M111, OM604, OM605,
  OM606(C & E Class, 36 mm opening).
- Mercedes fan clutch wrench is used to remove
  or install the fan clutch assembly
  for M-B engines M103, M104, M119, M120
  (65 mm opening).