
They fit my 1/4", 3/8" and 1/2" sockets perfectly. I like that they are clearly marked. I am not 100% sure if they are impact resistant but I only have the chrome finish to give that impression. However they are used in a drill and not a full size impact wrench. I suspect they are used with hammer drills/impact wrenches in It will be ok.Overall great value for money but I had to deduct two stars because the ball on the 1/4 adapter fell out and the spring was missing.It's designed in such a way that when you put a socket on it, the socket just falls off under the influence of gravity. I'll probably use a piece of paper to block the socket if I use the 1/4". In addition, the finish is not as good as the description shows. Even my attached photos turned out better than the original. .If I didn't have a quality issue with the 1/4" they would get 4 1/2 stars just for their price and usefulness.

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