Kolbalt are very good tools, they are not snap on, proto, matco, mac or cornwall. But are up there for the diy and homer owners. The only thing I do not recommend is their pliers. The craftsman are better, and so it the channel lock. The ratchet wrenches are pretty good as well. Majority of the kolbalts are made in taiwan, who makes very good tools. Their pliers are made in china, and some of their screwdrivers.
Craftsman sockets are very good, and they have excellent screwdrivers as well. Both their high end craftsman pros, also the wrenches are very good as well in their pro line. Especially the made in the USA ones. But their base wrenches the raise panel are good quality, made in the USA and dependable. Their mid level and high end ratchets are good, but their base ratchet is not that great. I like the kolbalt one over both the craftsman base and mid level ratchet. You can find US made ratchet wrenches form craftsman at some stores. But the taiwan ones are just as good.
And the warranty is hassle free with either brand, and they have a huge national presents. Which makes it easier to warranty.
Now if you want to spend the high end price. Proto, snap on, wright, Cromwell, matco, mac and armstrong are also excellent tools, a bit harder for warranty with most if you do not have a tool account with the truck guys. Proto is easy if there is a grainger close by. But you are playing allot more money for tools.