I was at one of the Sears Outlets here the other week, and while they had eight piece, US-made, metric or standard, six- and twelve-point combination wrench sets for $14.88 and $11.88 repectively, they did *not* have that mechanics set, alas -- it looks like a useful combination of items and a great price.
I agree with TJJP77 -- these are probably US-made.