I am very pleased with the product and affordable! Excellent quality - heavy duty. Time will tell on these, but I have no reason so far to believe that they won't hold up. I have yet to break a socket in either set.
What are the sizes.? They sizes for both shallow and deep sockets are 10-22 and 24. Are these stamped in the metal? Yes. They have a machine mark stamped into each socket as well as lighter contrasting labeling painted on them for easier identification. Are these impact? Yes. Some of the best budget sockets I have ever used, even my co-workers bought grey pneumatic after seeing mine and using them! where are these made? none