I use Craftsman tools at work. Only broken one, it was a 1/4" 5" ratchet. It just broke while lightly turning a screw out. The thing never saw torque in its life. So that pissed me off and I spent $60 on a Matco fine tooth one. 2 weeks later, I dropped that by accident and the guts spit out of it. Yay? Now I'm waiting until Tuesday(when the Matco guy comes) to get it bitch and moan and get it replaced.
My 3/8" and 1/2" barely get used at all. Air tools are the savior of ratchets. I used to go through a 1/2" ratchet(exactly like that one you have) a week, then I started using air tools and haven't broken one since.