- Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact Wrench v2-500ft/lb

The Astro Pneumatic Tool 1828 Onyx 3/8" Nano Impact Wrench absolutely exceeded my expectations. For such a compact tool, it delivers impressive power. It fits easily into tight engine bays and small spaces where a larger impact just won’t fit, which makes it perfect for automotive work and quick repairs. The build quality feels solid and durable, and it has a comfortable grip that makes it easy to control. Despite its small size, it has more than enough torque for removing bolts and fasteners without struggling. It also runs smoothly without excessive vibration. If you’re looking for a lightweight, compact impact wrench that still packs a punch, this one is a great addition to any tool collection. Definitely a solid buy for both DIYers and professionals. Definitely the best value for your money!

I've stopped using an air ratchet completely, and this replaces many of my regular ratchet jobs (for loosening, mostly). This thing is amazingly small, and I think probably makes as much or slightly more power than advertised - when properly oiled. I thought Astro Pneumatic was one of those cheap-o generic names, but no way; this is *awesome*, especially for the price. And it's amazingly small. I bought it specifically to use with some bolt extractors on a rusty exhaust manifold in a tight space, but I've found that the light weight and small size makes it useful for lots of things. I picked up some impact wobble extensions from Harbor Freight (even HF can't screw up an extension) as well as several sets of the Astro low-profile sockets and the Gear Wrench x-drive pinless universal joint, and this thing is getting used everywhere. I specifically like the lever-style torque settings on the back; they make a real difference, unlike some impact guns where they should have one useful setting and several labeled as useless. I run on lug nuts with the thing set on 2 (out of 3) to keep the speed down a bit, and after just a couple of hammers, they end up just snug enough (60-ish ft-lbs) that I can set the car down and use a torque wrench the rest of the way. The light weight is great; I have a magnesium Snap-On 1/2" drive impact, and while it'll either remove or break off anything I'm gonna encounter on regular automobiles, it does get a bit heavy when you're upside-down twisted around a driveshaft with dirt falling in your face. This thing, in combination with a Flexilla high-flow swivel coupler (you *need* high-flow fittings for an impact gun, and that swivel is easily the best-flowing one anyone makes) can get into a tight space and not make you feel like your arm is going to fall off. I replaced an alternator bracket oil gasket on my BMW N62 recently (which is about a 12 hour job), and used this for pretty much the whole job. It saved a ton of time and effort compared to trying to use ratchets, snaked around all the stuff jam-packed into an E60 engine compartment. As some others have mentioned, it's a tad loud, I guess, but the big Snap-On is far louder. Really, I consider this gun average for an impact gun. The noise is not as annoying as my air ratchet, which, as mentioned, I no longer use. It's also really well made. The picture makes it look like maybe plastic, but it's a textured finish on a metal case. The trigger feels good, the balance is good, the "shiny part" looks sort of like nickel or black chrome and is well machined, and overall you can tell that it's well-made by people who give a damn about their product. I've banged it around a little in the weeks I've been using it, and while there are a couple of little scratches, it's held up well. I've also sold a few friends on this thing, because I can't stop talking about how much I like it. :D I would've been happy if I'd paid $250 for the thing; the fact that it typically has a 2-digit price is just amazing to me. Buy one. You won't be sorry.

My favourite tool to use. Small, light and yet powerful! This is so small and handy that it has replaced my use of battery powered tools.

I rarely write reviews but this little guy deserves one. It is my workhorse. I've worked on cars for a living for twenty years. For the past six, this has been my go-to gun for everything that doesn't need the 'real' 1/2" impact. Which is an Ingersoll 2235 a.k.a. the doom bringer. Make no mistake, this thing can still snap m10 bolts. Stuff like m12 and m14 caliper bracket bolts you can pretty much beat with impunity, though. If you own 1/2" wobble sockets and you don't own this thing, you're making a mistake. After six years, I finally had one of the hammers crack. That is an unbelievably long life for something so cheap and so abused. The only other problem I ever had was that the screws for the hammer casing needed a couple of retorques before they quit loosening up on me. After it broke I immediately opened up my phone to order a new one. Hope this one lasts another six.

This gun I've had for about 3 years now and it has been a very good 3/8s impact to me, I've only oiled it handful of times that I can remember but so far I've has many drops it's lived through, right on the bolts. it's small so some spots are accessible, it's got speed and good torque but overall, it's just a good gun in my opinion. 4 out of 5 because I think the handle is big but it's not really. I'm getting the 1/2. Because of weight reasons too. Very satisfied overall, still used as of this review.

Writing this review after changing 3 wheel bearings, 2 ball joints, and 2 struts in a single day. I think the other reviews that mention lack of power are probably not supplying this tool with enough air, or using an improper setting. Based on tool usage, I had to set my regulator at 110 PSI to keep 90 PSI at the tool during use. This measurement was using 50 feet of 3/8" air line with 1/4" Hi-Flow fittings. I believe this tool is sensitive to a lack of air. This tool was able to remove axle nuts that were torqued to 150 ft/lb, rusted ball joint nuts, and wheel bearing bolts easily. Lug nuts were no problem for this. This hits much faster than my 1894 Thor impact. The Thor might hit harder, but this hits more often. This was able to remove bolts that Thor wouldn't, but Thor was able to remove bolts this would not. The selector level on the back of the tool really can decrease the power a lot, useful for not breaking bolts. During the repairs yesterday I handed my neighbor this tool while doing the repairs, he actually snapped a wheel lug stud while tightening with this tool on max power forward setting, resulting in one more part replaced on the job. So really no concerns over lack of power. This fit into places that my other impact wrenches simply will not (IR 2135, HF Earthquake, Thor, and an old Coleman Gun) and seems to have plenty of power for most jobs. Just keep in mind this hits and spins much faster than most full size. I cannot comment on reliability as I have only used this gun for about 8 hours, but I did put it through hell over those 8 hours.

Very good. Powerful, small, seems well made. I don’t know about 450 ft-lb, but rating an impact tool that way isn’t so great. It is, unfortunately, all we have to compare with, though. Elsewhere in these reviews is a complaint about its performance on loosening head bolts. I believe the review, but take a look at torque limiting extensions.. they are long, and torsionally springy, just like head bolts. When you apply an impact to something that deflects, the impact is lessened. Remember elon musk throwing the ball bearing at the cybertruck window? Oops, neither the window nor the bearing deflected much. The force exceeded what the window could withstand. If he had thrown it at the softer tire, the deceleration and force would be less, nothing would have broken. Same as throwing it at a pillow, but that doesn’t mean the pillow is stronger than the window, or that it wasn’t thrown hard. Same with the head bolt, the longish bolt would twist, only right at the moment the rotating hammer applies the torque, where a short rigid lug nut would come off. Try using any impact wrench with a long extension, it just doesn’t work as well. I notice sometimes that even a deep socket lessens applied torque vs a shallow one. Anyway, I really like this little gun, and was surprised by its power, whatever number is assigned to it. The reversing/power lever and trigger have a nice feel, also. I do think that when the applied torque varies a lot depending on the rigidity of the fastener, socket, and extension (if any), rating the power in ft-lbs is a poor way to do it. Thats what everyone does, though, so hopefully it gives some info for comparison. Maybe energy per blow when stalled?...I Don’t know.... probably true that this won’t loosen something torqued to 450 ft-lb. I’m tempted to call it a lie, but astro is just conforming to a not so appropriate unit. It is quite powerful for a little 3/8 drive gun. (Ft-lb torque and ft-lb energy are not the same, despite the unfortunate apparent sharing of units...one involves motion, the other is using the ‘ft’ only to describe lever dimensions.)

This is a great and strong impact. I do oil it every couple of days. I use it mostly in spaces that are tight, but also use it just because it is what's on my tool cart at the moment. Gets used mostly for brake jobs, but has no problems with most C/V axle nuts or using an on vehicle hub bearing press. This is the second one I've bought. The first one still works after years of use, but has become weaker due to heavy use. NOT unexpected for automotive tools that get used sometimes not how they are meant to be used and abused. Just buy it. Keep it oiled, and expect to love it.

Es una pistola compacta y con mucha fuerza, desde que la compré, no he tenido problema he pensado en comprarme otra

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Ancien mécanicien dans l’automobile, je travaille présentement sur des unités de réfrigération dans le transport de produits à température contrôlée. Un impact 1/2 conventionnel fait le travail, celui que j’avais déjà avait besoin d’être réparer mais son manque d’ergonomie et sa puissance bcp trop élevée pour le travail requis , m’aura permis de tomber sur ce tout petit impact 1/2. Sincèrement, c’est un must! Je peux le manipuler comme un petit impact 3/8, le tenir à l’envers à bout de bras parce que l’emplacement de certain travaux/bolt, est mal placé, donc il est léger , petit, se manipule bien comme un 3/8, mais il possède une étonnante puissance, amplement efficace pour mon travail! Son seul point faible, et pour moi ça n’influence aucunement mon évaluation, c’est le nombre de décibel qu’il dégage. Je ne m’attendais absolument pas tous ces dB. Je suis parti à rire la première fois. Mais le fait qu’il soit si puissant et ergonomique, le nombre de dB me passe par dessus la tête! Pour moins de 200$ il n’y a aucun doute que je le recommande. Voyons maintenant combien de temps sera sa durée de vie .

Excelente compra

all good