I got aluminum Wheels for my boy's car.the socket has 10 grooves and is skinny..we had to replaced the brakes so we tried to take the wheels off.we broken the socket.we called Discount Tire and went by and they gave us another 2 sockets.We used the next one and cracked it.the Crack was about 3/8 inch long from the tip of the socket so before we cracked the last one I got an idea to cut of the cracked part with my grinder just past the crack.the socket was just long enough to reach the nut.we were able to slowly loosen the nut using a cheater bar.the guys at discount tire alway check manually with a torque wrench to make sure that the nuts are tight enough. The problem with these idiots is that they torque the nuts with an impact wrench that tightens them up with about 250 pounds of torque and when checking them to about 150 pounds of torque, ofcourse it's going to pass the test.what a bunch of idiots.corperate need to train them well.