I bought the SAE snap on set about a year ago, BUT i don't think S/O makes it anymore. I would ask your truck guy or look at eBay. My set is 1/4-13/16, i'll check if i have the part number someplace.
Yeah, I know the 9mm is on two wrenches but, I can overlook that since the chrome is real nice, the ends have off corner engagement, and I like the wrenches. Ebay sets are often less than half priced.