I have yet to break a socket in either set. Bought this set for my job as half mechanic/ Tire Lube tech.
Do these tools have warrenty? I'v had both long and short 17mm brake on me. IS there a place i can go to exchange or it has to be shipped back? yes they are lifetime warranty , Go to gpsockets.com for information about how to get sockets replaced under warranty. I haven't had to replace any so this is the best I can offer. 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. What are the sizes.? They sizes for both shallow and deep sockets are 10-22 and 24. 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! Is this set 6 point or 12 point sockets? It is a 6 point set