Hilmor 1937911 Magnetic Nut Driver Set - Fast Connect HVAC Tools, 8 Piece

This item has been great addition to my HVAC tool bag. The only problem I have is to fill the extra slots with fittings. I would like that the drivers were ratcheting.

Very nice drivers, has the sizes I need most.

What I got was a stubby and regular sized quick connect handle. As in you just have to push the hex head into the chuck of the handles and it accepts it. The lock isn't as tight as a molded 6' nut driver would be. and in all honesty I would probably recommend Hilmor's 1/4 and 5/16th's reverse able nut driver over this if you are going to be using it every day. Unless of course you are one of those techs that run into 3/8s more often than me. You get 3 6' nut drivers, 1/4, 5/16, and 3/8, as well as some much shorter versions of the sizes listed. Again there is probably no substitute for a purpose made stubby version of this tool. While the stubby is small, the chuck for the quick connect portion definitely makes this sizable, almost as long as a 9 in 1 hilmor makes, but if you find yourself needing that 3/8ths bit in a tight space, I'm gonna have to say again this might be the perfect set for you.Now to my title, in all honesty I didn't need the stubby, or the regular handled quick connect, what i wanted was nut drivers. These go into an impact just fine, and punish zipscrews with a passion... at the right angle. I don't know if the metal is soft or just slightly rounded, but I was really unimpressed with how they worked as nut drivers. Makita has a cheaper set that only has the 6' sizes but still has that 3/8 nut driver. In our world of HVAC with the rise of those reversible cleanable malco extension bits, while pricey are probably worth every penny. But even those are not without sin, anyone who has used them in confined spaces knows that where the zip screw seats itself is extraordinarily obese. Making it difficult to set screws and makes them sit in my service bag more often than my install bag, but the freedom to clean them and not have to deal with gunked up nut drivers like these will all eventually turn into.Anyway, I've gotten way off topic. Are these the best? Naa, not really, they are pretty good tho, with a wide range of uses, I just find myself gravitating towards the makita set I bought more often than this set, unless its solely in the quick connect handle.I'd recommend it to people who genuinely need the features it offers, otherwise save some money and just get that reversible 1/4 and 5/16th driver.