I haven't used it yet, but looks and feels good. I like the convenience of having it, just in case I might need it.
It worked for me on a bolt in a weird spot. I needed 6nm torque and it did the job.
I wasn't even sure something like this existed until I needed it. With these extensions, it was quick & easy to access those hard-to-reach fasteners. These things helped me replace the anodes on my Bravo III outdrive when no other tool would fit. I highly recommend them!
Needed to get to a bolt in the brake pedal holder not accessible by standard extensions. It worked.
I used the ¼" drive extension yesterday for a hard-to-get-at under-dash screw and it works great. Will use it again when I put the new part in.