I picked up a sew sets from Autozone, Great Neck brand, metric deep and shallow and standard shallow. The size range is limited but I've fleshed it out with some SO and Cman. I've beaten the living **** out of them, never rounded a fastener that wouldn't have rounded anyway due to rust and they hold up rather well. The shallows were around 15-20$ and the deeps were only a few dollars more.
Metric deep set: 11-19mm
Metric shallow set: 10-19,21,22,24mm
Standard shallow set: 7/16 (I think)-1"
Cant remember where the standard set stars, I rarely use them.