I have the equivalent set of SAE 1/2" impact sockets from Gearwrench. They were made in Taiwan. The sockets are much more durable than these metric sockets made in China. I haven't torn any of either set up yet and have done some pretty serious impacting with them on truck lugs and blowout preventer bolts. These are fairly large nuts with plenty of applied torque on them, so you have to beat and bang on them to get them loose. The 36mm socket has some indications on the drive side from impacting after using them to change out some tractor trailer tires. It still has plenty of life in it, but I was a little disappointed in seeing that in the first few hours of use. My Taiwan SAE Gearwrench impact sockets are all little beasts! Hundreds of hours on some of these sockets and they are all as good as new. The impact guns I use are primarily the high torque 1/2" Milwaukee Fuel (2nd gen.) and 3/8" Milwaukee Fuel (3rd gen.), and various Ingersol Rand pneumatic impact guns when I just have to drag out a stinking air hose.To me, the case is just as important as the tools. This case (and the SAE tool case) is very well made. They have molded in latches on the sides, and 2 steel mechanical hasps on the front. I haven't had them come open accidentally one time in hundreds of in and out maneuvers from my crossbed toolbox. That's a hard life in my toolbox with a bunch of other big heavy stuff in it. These cases are holding up beautifully. And I instantly know if anything is missing from the case. My best guess is that the cases in the metric and SAE sets are made at the same place, but for some reason the sockets were made in different countries. The cases are easily worth $75 to me to help me keep up with all of those sockets. Even if I have to replace a socket here or there, I have a good case to keep the new socket in.
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