Without using it and seeing it up close, I cant say for sure, but I've had kits almost identical over the years. Got these as Christmas/Birthday gifts from aunts/uncles/etc and they were all terrible (though I am eternally grateful for the thought) They came in a cheap metal case, had some round plastic disc with ridges on the edge that slipped over the square drive of the ratchet because the action was so course that it would only ratchet for rusty bolts. After a few uses, they would only work in one direction, unless you turned the center part just right. Soon after it would just spin in both directions. Chrome flaked off the sockets before the first use. Of course, like yours, they were marked "professional."
