Ingersoll Rand 15QMAX 3/8" Drive Air Impact Wrench

This is my daily driver at work, if I had to describe it in just one word “ smooth” its operation is smooth. It makes plenty of torque for most fasteners to smoothly fall off. The anti shock grip does a great job cutting down the vibration giving. Just everything about this impact is smooth and definitely pro grade quality and durability.

Other reviews seemed confusing or contradicting so I'll lay out the facts and what I observed with this gun (the 3/8 drive 15 max). First off yes, unfortunately the gun is made in China unlike most IR products, but the quality, construction and feel of the gun is comparable to my other USA made IR tools. The gun I received does not leak whatsoever, so if yours does just send it back to amazon and get a new one; it's defective.. For my test I use a 3/8" x 50' rubber airline with no leaks, and 1/4" NPT V-type air fittings. 3hp 30 gal compressor running 100 psi in the line. Oiled the gun with standard air tool oil as soon as I took it out of the box. I used a torque wrench to tighten the lug nuts on my truck to see what the limit of breakaway torque this gun will make. The lug nuts are 9/16" -18 clean, rust free, dry threads and 3/4" hex nuts. Using a deep impact 3/8" drive 3/4" socket and no extension I found that the limit of this gun is between 154 and 158 ft lbs of breakaway torque on that specific size of lug nut. I tried multiple times and multiple nuts, and it consistently would not loosen bolts torqued to 160 lb ft and would always loosen torqued to 150 lb ft. 155 lb ft is 50/50. When tightening the lugs until the gun completely stopped turning the nuts came out to between 120-130 ft lbs tight. You might think that's not even close to the advertised torque, but the manufacturer torque ratings are always some made up number in a specific test to make the gun perform as best as possible, with no real standard. Either way, that's more than enough torque for most real world applications like brake, suspension and under the hood work. This should not be your main gun by any means, but it is a specialty tool for tight spaces and does exceptionally well at that. It's also very cheap for an IR tool... Only ~$30 more than the harbor freight earthquake? Maybe I'm biased to the brand, but it seems like a no brainier to me. Earthquake might last 10 years, IR will outlive you.

The unit started out so weak using a 9/16 socket I could stop it in my hand it in my hand.. After a little use it is now a "can't live without tool". It will never be like the full size 1/2 models but after breaking down a 66 mustang to bare bones on a rotisserie i can not live without it. The power got better after breaking in,, sort of like a rotary hammer.

so when I first got this I was pretty leery because it is so light and quite and at first I was not convinced straight out of the box but after a month it just seems to be getting stronger as it breaks in. I used it to take off 3/4 ton truck lug nuts just for giggles and it did it. On the highest setting it reefs it down hard and keeps twisting to the point that if you don't pay attention it will twist the head of a 3/8 bolt. I am pleased and will now buy the 1/2 as well. It's also small enough to get into tight places. Best impact I've used by a wide margin.

Is a nice light gun but is not near the amount of torque as advertised. My 20V Dewalt is just as powerful and is rated as half the torque of the air impact. Was dissapointed and was expecting a much more powerful gun. Will return this item

I love Ingersoll's impacts. I have a range of sizes from 1" to 1/4" and use all of them daily. The 1/2" I've had the longest for 5 years, and have yet to see or feel any performance issues. As with the 1/2", with the 3/8", I have yet to hear the impact working because they are so quiet! Of course I'm exaggerating, you can hear them working, it's just at 84 DB, these are waaaay more quiet than all of the other brand impacts. I have been able to hear and keep conversations while in use, and they have the same breaking torque as other comparable impacts! With a quality impact that performs the same and is quieter, you won't catch me with any other brand. You also won't catch me saying "huh?" A lot either as my hearing won't be as bad as with the daily use with other loud brands. 5/5 Ingersoll fanboy for life.

Love how light weight and quiet it is. Power is lacking. No power. Good for small stuff

I got the 15Qmax for work because I primarily use a m12 Stubby for 3/8s but want an air replacement to take my Stubby home to work on my own small projects. I know it's not meant to take lugs off but I tried to take one off right after getting it and it didn't even budge the lug. My m12 stubby takes lugs off no problem. I said whatever and tried taking off a caliper bolt and it didn't take that off either. Brakes are something that this thing was supposed to be used primarily for so it's a little disappointing. With like 475 lbs breakaway it should be able to do these 2 things no problem. One thing it is good at is being quiet. Almost sounds electric. But I still have to find something that it can be used for before I could ever say I like it. I have the 2235 Qmax and absolutely love it. I wanted to get the 1/2 stubby (36Qmax I believe) but am worried it wont really be good at anything either. It's supposed to have around 600 lbs breakaway but with the severe lack of power in the 3/8 after advertising over 400 lbs breakaway Im hesitant. I don't know if my unit is defective because there are some mixed reviews. Some saying its great and others saying it lacks power.

Nice design, compact and light. Powerful for the size and weight. Good price too. I bought a 1/2 and a 3/8

Great impact and powerful

Product works fine but I cant get the advertised torque even with CEJN hose / couplers and pressure gauge adjusted to max constant working pressure. 500L compressor can supply tools max pressure air indefinitely so issue is not air supply. I thought better of Ingersoll.

とてもコンパクトで軽く使いやすいですが、 トルクが もう少しあるとよかったかな。

Excelente producto, funciona muy bien!