Found this little keychain by accident, was looking for a very specific thread adapter, and this seemed like one of the only ones available, so I snagged one up, just to check it out. It is pricey, yes, but upon arrival You understand why - all the machining is top notch, the threads are clean and neat, overall it just feels good in the hand, a properly well made item. It's perhaps not often that You'd need one if any at all of these adapters, but when the time comes You'll be so glad that You have it, and it's real easy to have it on you at all times, I keep it on my work backpack via the provided carabiner, thus it's always where it needs to be! Could do with a couple of bucks off, but overall, do recommend!