Per AA, "By 1928 Sherman-Klove had established a Brazil Stamping Company subsidiary, which presumably would have manufactured tool boxes and other articles made by stamping. The "Brazil" part of the name probably derives from a Brazil Motors vehicle maker in nearby Brazil, Indiana, which at one time had a stamping plant in Chicago. A later catalog for "Brazil Tools" lists the address for the Brazil Stamping Division as 4715 South Central Park Avenue in Chicago."
I'm still not sure mine are SK or imports. I can't find definitive information on the wrench manufacturing.