I finished my work with this tool. It works very well. I only bought it once and it was enough. It's a very good tool. I tightened the tool a bit to make it work better, and it quickly became my little helper.I need to put tie downs in my trailer floor and it worked just like designed. Case makes it easy to keep everything together.Rivet nuts (rivnuts) are a great and often underrated fastener tool from my experience. I'm a mechanical engineer and have used rivnuts numerous times in both professional and personal projects. Rivet nuts are like the PEM nut equivalent of larger fasteners. They are great for when you need to add a threaded hole into something like tubing, framing, and onto thinner bracket materials that are not thick enough to tap. I prefer to tap threads whenever possible but always make sure you have enough material thickness to allow for adequate thread depth (1 times the nominal diameter in steel and 2 times the nominal diameter in aluminum); otherwise, go for a rivnut.This tool is robust, well build, and should last a long time of use and rivnut installation. The 16" handles provide plenty of leverage for riveting the larger size rivnuts and make it possible to also seat rivnuts made of stainless steel which require much more force to compress and "mushroom" the nut out for securing. The mandrels are easy to switch out and the kit comes with all of the most common SAE and metric thread sizes one will need. The included rivnuts are the common zinc coated steel version and provide a samples of nuts in each size. The nuts are individually bagged by their size and I recommend getting a small divider/tackle style box to store them in once their opened to they don't get mixed up. The larger size nuts only come with a handle of each size but additional nuts are readily available online or at the hardware store.This is a great kit to have on hand if you frequently do repair work or like to make things. The storage case is nice enough and does the job. The value here is in the tool which I can definitely highly recommend to anyone looking to get a rivnut riveter.Riv-nut, threaded rivet, nut-sert, threaded insert...they go by a lot of names. But a threaded nut combined with a rivet is a handy thing indeed. I've used them on a lot of projects, wherever I want to install a bolt or screw but I don't have access to the back-side of the panel to add a nut, or when I'm attaching something that will be regularly disassembled and reassembled and want to save the hassle of using a second wrench.But installing riv-nuts requires a special tool like this one. It can be done cheaply, with a long bolt and a couple of washers and a coupling nut. But that method is an exercise in frustration. If you're going to be doing more than one project that calls for rib-nuts, save yourself the headache and get a tool like this. And once you have the tool, you'll suddenly find all sorts of other projects where a ric-nut just makes your life easier.I've had a more expensive version of this tool for years, and it has come in handy over and over. That tool is called a "Marson Thread Setter" and it used to be the only one on the market for installing larger rib-nuts. Smaller sizes could (and still can) be installed using the super-cheap one-handed rib-nut tool you can get at Harbor Freight, and which will fall to pieces in your hand by your third use.This tool from FOREVTL is somewhere in between, but closer in quality and features to the larger Marson unit. While it's somewhat smaller, and the build quality isn't quite as heavy duty as the Marson Thread Setter, this tool is very sturdy and should hold up to years of use. While there are some plastic parts, the components are all metal where it really counts.But there are several areas in which this tool beats the Marson one handily. The first advantage is of course price, as the Marson carries a "tool truck" price. The second is that this tool comes with a wide variety of mandrels and nose-pieces, for just about every size riv-nut you'll ever need, including both standard and metric sizes, while you have to buy them separately for the Marson. The FOREVTL even comes with a starter pack of every size riv-nut so you can get right to work. Finally, this kit comes in a handy, well-made carrying case that organizes everything (except the riv-nuts themselves, which are just supplied in poly bags--I wish the kit had come with a tackle box style organizer for those as well).In use, the tool feels sturdy and well-made. The arms are a little shorter than the Marson, so you have slightly less leverage for those larger riv-nut sizes. But the tool is a little less un-wieldy for most jobs. My only complaint is the plastic components I mentioned earlier, but like I said those should hold up OK over the long term. Overall this is a good tool and a great value.I had a specific DIY task where I needed a rivet nut tool to install step boards on a Lexus SUV and bought the least expensive rivet nut tool available at the time, which unfortunately at only 10-inch long handles. The tool I bought worked, but it was a huge challenge to apply the leverage needed to compress the rivet nut.I have another DIY task and didn't want to suffer the limitations of 10-inch handles so I ordered this and can say that those extra 6-inches make a huge difference in leverage and creating a properly installed rivnut.The case is also pretty nicely layed out in that it stores all but one of the mandrels. I do wish that it had a place for all the mandrels, but it works. Most likely, I'll be storing this in a tool bag with all all the rivet nuts as well.