How strong is your ratchet?

I have a Blackhawk indexable 3/8" drive ratchet that has had a 4' bar on it with a pretty big guy pulling on it. I got it on clearance from the local US Car tool. I have a bunch of circle head ratchets from who knows what brand that have all become junk even to just me with my bare hands. They end up free-spinning and wont lock anymore. Take in mind I am only 120#s. But ya get what ya pay for