I have two sets of 1/4" drive SAE and metric sockets from Northern Tool. The first set was purchased before the Klutch name, those sockets are called Northern Industrial. The second set has the Klutch name. Both sets are made in China. Both sets advertise a lifetime warranty. Both sets appear to be from the same manufacturer.
Typically I use Snap-on, Williams, SK, Wright and Craftsman sockets. I got the Northern Tool sockets to carry in my pocket (in a Jensen Tools socket boot) to take to jobs where I was concerned that I would lose or even have a socket stolen. I can loan these to co-workers and have no concern if they lose them. I have been using the NT sockets daily since 2011-12 and have experienced no problems and only lost one socket.
It should be noted that my application is 1/4" drive, low torque. I did lose one socket. Unfortunately my local Northern Tools does not sell 1/4" drive sockets individually so I had to buy another whole set to replace the missing socket. There is the beauty of other brands, you can buy individual sockets. Not sure how NT would handle warranty claims if you had only one bad socket.
