So, the GearWrench branded ones come in a 12pc Metric set and an 8pc SAE set?
That seems odd.
http://www.tooltopia.com/kd-tools-85488.aspx
http://www.tooltopia.com/kd-tools-85498.aspx
It was definitely done for pricing reasons. I'm thinking that Sears cut out the sizes they didn't think people "needed" in hopes that the lower-priced sets (compared to KD, Gearwrench) would sell better.

