i bought a set of harbor freight impact sockets. tapping on them, they had a weird "ping!". they felt oddly lightweight.
i put one on my impact, tried to take off my truck wheel. i got to "bra...." and the thing blew up. good thing i had heavy leather gloves and eye protection. that thing shattered.
i toss the entire set. i drove my ass to Sears.
i still need to find a great 3/8 long handled ratchet to replace my Craftsman. i'l probably flag down one of the fancy tool trucks to see what they have going.