I was not that impressed with the Duralast impact sockets. They seem OK, But they are the same Ole cheapie impact sockets everyone sells.
The impact sockets Ive found with the best Quality:Features

rice Ratio is
OEM industrial brand.
They are thin wall, have lock ring grooves (not sure the real name), & Dual size markings, (one Lazar one stamped). They also have long tapped drive ends (See pic below).
Oh and they are priced fair at around $35 for the 11pc 1/2" deep sets and $25 for the 12pc 3/8" sets (Plus shipping, prices may very)
Tapped drive ends I'm talking about.
Short set
deep set