Stanley Tools Ball End Hexagon Key Set of 12 Imperial (1/16 - 3/8in)
is no longer available although you may find similar or newer versions below:
Imperial ball end hexagon key set containing the following sizes:
1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8in.
Stanley Ball Ended hexagon key set with standard Hexagon end on the short arm and ball end on the long arm