No, they are not. But from personal experience in the last couple years, I twisted off the drive stud on a new Craftsman 12" or 14" breaker bar (whatever length the standard 3/8" breaker is) by hand. I didn't even get a chance to put a cheater pipe on it, or whack it with the BFH, or anything. One hand on the socket, one hand on the bar, heave, and splat. Twisted it right off. And I get chrome splinters and cuts all the time from the flaky finishes.
90% of my tools are old Craftsman stuff I inherited from my dad, and the 15-year-old Craftsman socket set I bought back then has been great. But the stuff from the last 5 years seems to be not up to par.