From what I have been able to ck.out Sears Craftsman,and Cobalt are just about the same thing,tools,boxes,etc. What you should remember is that Sears,or Cobalt send out specifications to various manufacturers to make products for them.Whoever comes in with the lowest bid gets the job.Maybe Sears has a higher standard,or perhaps it is Cobalt.Who knows.From what I have seen Sears offers many different price ranges in their tool chests.The cheaper ones are probably not worth bringing home,whereas the top of the line chests seem to be of very good quality.I have seen the Cobalt chests and they didnt impress me at all.They seem to be a middle of the road item when comparing them to Craftsman.I have been buying and using Sears Craftsman hand tools my whole life,and I am very satisfied with the quality.I have also used the more expensive brands,SnapOn,etc,and see very little difference. I have looked around at the Cobalt line of tools and they dont seem to be any better or worse than Craftsman.My advice is to look and compare very closly before buying,especially a large dollar item such as a nice set of tool chests.I bought mine at Sears and I am very satisfied with them.Course I take excellent care of my tools,chests,etc.