USA Made = CRAFTSMAN = Double BOX END WRENCH SET SAE standard INCH OFFSET 6pc =V=. the sizes are
1" X 15/16", 7/8" X  3/4", 13/16" X 11/16", 5/8" X  9/16", 9/16" X 1/2",  &  7/16" X 3/8". The 13/16X11/16 does not have the series V marking on it. And the 9/16 x1/2 have notches as identifying marks (as shown in the last photos). Please see the photos and thanks for looking.