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Title: Does not always work in standard impact driver spring-chuck
Review: I have purchased two of these from the same seller via amazon. The first set was perfect and exactly like in the picture with one slot in the shaft for the bearings in the driver chuck to connect. I liked it, and ordered another to have one in a dedicated portable tool chest. The second set was ordered using the same link, but was not the same socket adapters at all. There were two slim slots in the shaft and got immediately stuck in my dewalt 18 volt impact driver. I had to rip it out with the assistance of vice-grips and persistent knocking with a second wrench. The first set is nice, but the second almost damaged my far more expensive tool.
