Update: I'm updating my review to 4 stars. I'll admit to some user-error with my initial purchase and the instructions do not offer much detail when it comes to dialing in the tool. I had to rely on YouTube and the forums to find out how to set this up correctly. Also, the parts on my first tool were extremely tight. The replacement tool was much easier to work with and setup correctly. Good luck! ------ I may have received a bad unit. My issue has to do with the rear cap. The instructions mention that if the rear cap doesn't spin freely, loosen the 10 bolt and make sure the spring isn't compressed. I followed the instructions, loosening, even removing, the bolt and had no luck spinning the cap. The cap would only spin when there was air in the chamber and the mandrel was retracted. Once you let go of the trigger, the cap was locked and would not spin. The gun was able to securely attach the rivnuts, but I was unable to spin the mandrel with the rear cap to remove the gun from the nut. Fortunately, this was on a test piece of metal and I could spin the workpiece to unthread it. This gun also exhausted oil from the vent and the inside of the carrying case had leaked oil on most of the surfaces. The gun has received good reviews online and my hope is the replacement works much better.

Works great I've had no issues use it just about every day in the shop ,I would definitely recommend it

This is a great riv-nut gun, but there are a couple things to be aware of. This is sent from the factory with the M6 tool installed with the nose nut, and is torqued so tight it makes you wonder if it is removable. Pay attention to the reverse threads on the tools. The angle of the head in relation to the body, as well as the grip location and size poses a almost unavoidable pinch hazard (especially if you have large hands!). If your hand gets pinched, do not panic and rip your hand free, simply pull the trigger again and it will release you from it's grip. After pinching your hand once or twice, you should learn how to avoid this from happening. Hopefully. That being said, I have not had this for very long and haven't used it much yet to speak of durability. But here are some things I have noticed right away: The tool seems to be constructed fairly well, and the blow molded case is decent. The case holds the tools securely in place, and you can even leave a tool in the gun! But you need to remove the air inlet fitting to fit it in the case The pressure adjustment is nice to have right in the gun, and has a fairly large range you can set with that alone. It is only 1/4 turn from MIN to MAX, so it may be tricky to get dialed in especially if you switch nuts and need to go back and forth on the pull pressure. It is great that this comes with both SAE and Metric tools included. This gives you more versatility and value for money from one tool, which was one reason I purchased this. I have both SAE and Metric nuts I need to install, and this saved me from buying two separate tools or having to find and purchase more tooling for another tool that only comes with one set. Performance wise, I have set quite a few 1/4 Stainless nuts already (which claims is the max for the tool in Stainless), they set completely on the first pull smooth like butter! Unlike the reversible twist style guns, you need to manually unscrew this after setting the nuts. Not a deal breaker for me, but if you have hundreds of nuts to set, it may be a pain. I do about 50 at a time, and it isn't too bad. Overall, not knowing about long term durability yet, I would definitely choose this gun again.

This tool is five stars all the way!! It does exactly what it is supposed to do effortlessly. This is a must for people that fabricate for any sheet metal project or working on vehicles. Now for my rant on why can't I give it five stars- Once you thread the air fitting on the tool you CANNOT put it back in the plastic case and get it to shut. Really!!!! You guys couldn't make the case to fit the tool in there while the air fitting is still threaded on the tool??? Who is going to thread the fitting on (using thread sealing tape) and then take off the air fitting every time they have to use this tool?? Well that's what you are going to have to do if you want it to fit in the case and get the case to shut. So close to five stars, but not quite.

Always did nutserts by hand, never again after buying this. Instant game changer, worth the money.

I wish bought this years ago instead of trying to strong-arm rivnuts in tight spaces with the manual type tools. works well in tight clearance areas

Tool performs very well, we install thousands of rivnuts a week. Only issue I have is being able to order spare parts (mandrels). If anyone knows any info for this, please let me know.

Whole reason I bought this was to install 1/4-20 rivet nuts and right out the box the insert for that thread size is malformed. Manufacturing defect, the threads on the 1/4-20 insert were butchered and mangled during manufacture. Great...

Just what I needed

Astro Pneumatic installation of rivet nuts easy! Works fast and secures the rivet nuts accurately. This tool avoids the aggravation associated with installation of these types of fasteners.

Works and works and works. It gets used almost every day in my shop and has never let us down Bought it 3 years ago and its still going strong.