So who likes what? I have some, some good, some bad. Of course "the good ones" I don't remember, and have no idea where I got 'em, and over the years, they may have changed, anyhow. I just bought 'one', a plastic Husky 3/8" at HD for 7 bucks. They have solid "plug ins" with a spring ball just like an extension. They fit good, I don't know how great they are Others? I've looked at HF "I don't think so, Tim"